diff --git a/APOGEE_cameras/apogee.c b/APOGEE_cameras/apogee.c
index ba1466f..791e19c 100644
--- a/APOGEE_cameras/apogee.c
+++ b/APOGEE_cameras/apogee.c
@@ -193,6 +193,12 @@ static int setbitdepth(int i){
     return TRUE;
 }
 
+static int getbitdepth(uint8_t *d){
+    if(!d) return TRUE;
+    *d = (is16bit) ? 16 : 12;
+    return TRUE;
+}
+
 static int setfastspeed(int fast){
     DBG("set fast speed %d", fast);
     unsigned short spd = (fast) ? AdcSpeed_Fast : AdcSpeed_Normal;
@@ -359,6 +365,7 @@ cc_Camera camera = {
     .setfanspeed = setfanspd,
     // getters:
     .getbrightness = fpfalse,
+    .getbitpix = getbitdepth,
     .getModelName = modelname,
     .getgain = fpfalse,
     .getmaxgain = fpfalse,
diff --git a/Astar_cameras/artifical_star.c b/Astar_cameras/artifical_star.c
index 2b81bea..ee3cb99 100644
--- a/Astar_cameras/artifical_star.c
+++ b/Astar_cameras/artifical_star.c
@@ -33,32 +33,128 @@ extern cc_Camera camera;
 extern cc_Focuser focuser;
 extern cc_Wheel wheel;
 
+// array size
+#define ARRAYH  (1050)
+#define ARRAYW  (1050)
+
 static const int filtermax = 5;
 static const float focmaxpos = 10.;
-static int curhbin = 1, curvbin = 1;
 static int filterpos = 0;
 static float focuserpos = 1., brightness = 1., gain = 0.;
-static float camtemp = -30., exptime = 0.;
+static float camtemp = -30., exptime = 0.1;
 static cc_capture_status capstat = CAPTURE_NO;
 static double texpstart = 0.;
 static uint8_t bitpix = 16; // bit depth: 8 or 16
 
 typedef struct{
-    int width; int height; // size of field where the 'star' can move
     int x0; int y0; // center of star field in array coordinates
-    double fwhm; // stars FWHM, arcsec
+    double fwhm; // stars min FWHM, arcsec
+    double beta; // Moffat `beta` parameter
+    double theta; // start theta, arcsec
     double scale; // CCD scale: arcsec/pix
-    double mag; // star magnitude: 0m is 16384 ADUs per second per arcsec^2
+    double mag; // star magnitude: 0m is 0xffff/0xff ADUs per second
+    double vX; // X axe drift speed (arcsec/s)
+    double vY; // Y -//-
+    double fluct; // stars position fluctuations (arcsec/sec)
 } settings_t;
 
 static settings_t settings = {
-    .width = 500, .height = 500,
     .x0 = 512, .y0 = 512,
-    .fwhm = 1.5, .scale = 0.03, .mag = 10.
+    .fwhm = 1.5, .beta = 1., .scale = 0.03, .mag = 0.,
+    .fluct = 0.5
 };
 // min/max for parameters
-static const int wmin = 100, hmin = 100;
 static const double fwhmmin = 0.1, fwhmmax = 10., scalemin = 0.001, scalemax = 3600., magmin = -30., magmax = 30.;
+static const double vmin = -20., vmax = 20., fluctmin = 0., fluctmax = 3., betamin = 0.5;
+static double dX = 0., dY = 0.; // current "sky" coordinates (arcsec) relative to field center (according vdrift)
+static int Xc = 0, Yc = 0; // current pixel coordinates of "sky" center (due to current image size, clip and scale) + fluctuations
+static double Tstart = -1.; // global acquisition start
+static double Xfluct = 0., Yfluct = 0.; // fluctuation additions in arcsec
+static il_Image *star = NULL; // template of star 0m
+static double FWHM0 = 0., scale0 = 0.; // template fwhm/scale
+static int templ_wh = 0; // template width/height in pixels
+
+/**
+ * @brief test_template - test star template and recalculate new if need
+ */
+static void test_template(){
+    if(star && FWHM0 == settings.fwhm && scale0 == settings.scale) return;
+    templ_wh = (1 + 6*settings.fwhm/settings.scale); // +1 for center
+    FWHM0 = settings.fwhm;
+    scale0 = settings.scale;
+    il_Image_free(&star);
+    star = il_Image_star(IMTYPE_D, templ_wh, templ_wh, settings.fwhm, settings.beta);
+    //il_Image_minmax(star);
+    //DBG("STAR: %dx%d, max=%g, min=%g, %d bytes per pix, type %d; templ_wh=%d", star->height, star->width, star->maxval, star->minval, star->pixbytes, star->type, templ_wh);
+    double sum = 0., *ptr = (double*)star->data;
+    int l = templ_wh * templ_wh;
+    for(int i = 0; i < l; ++i) sum += ptr[i];
+    //green("sum=%g\n", sum);
+    OMP_FOR()
+    for(int i = 0; i < l; ++i) ptr[i] /= sum;
+}
+
+/*
+ * About star[s] model
+ * Star magnitude 0m is approximately full signal level over square second.
+ * Star image generates in circle with raduis 3FWHM'' (3FWHM/scale pix), so amplitude
+ *  of star (max value) will be calculated as
+ *   0xffff (0xff for 8bit image) / sum(I1(x,y)), where I1 is generated star image with amplitude 1.
+ * Flux for magnutude `mag`: Im = I0 * 10^(-0.4mag)
+ * 1. Generate `star` with ampl=1 in radius 3FWHM/scale pixels for image in `double`.
+ * 2. Calculate amplitude I = 1/sum(I1(x,y)).
+ * 3. Multiply all template values by I.
+ * 4. Fill every `star` from this template with factor 0xffff[0xff]*10^(-0.4mag).
+ * 5. Add background and noice.
+ */
+
+static void gen16(cc_IMG *ima){
+    static int n = 0;
+    register int w = ima->w;
+    int h = ima->h, tw2 = templ_wh/2, X0,Y0, X1,Y1, x0,y0;
+    if(Xc - tw2 < 0){
+        X0 = tw2 - Xc;
+        x0 = 0;
+    }else{
+        X0 = 0; x0 = Xc - tw2;
+    }
+    if(Yc - tw2 < 0){
+        Y0 = tw2 - Yc;
+        y0 = 0;
+    }else{
+        Y0 = 0; y0 = Yc - tw2;
+    }
+    if(Xc + tw2 > w-1){
+        X1 = templ_wh - Xc + tw2 - w - 1; // templ_wh - (Xc + tw2 - (w - 1))
+    }else X1 = templ_wh;
+    if(Yc + tw2 > h-1){
+        Y1 = templ_wh - Yc + tw2 - h - 1;
+    }else Y1 = templ_wh;
+    double mul = exptime * 0xffff * pow(10, -0.4*settings.mag); // multiplier due to "star" magnitude
+    // check if the 'star' out of frame
+    DBG("X0=%d, X1=%d, Y0=%d, Y1=%d, x0=%d, y0=%d, mul=%g", X0,X1,Y0,Y1,x0,y0, mul);
+    if(X0 < 0 || X0 > templ_wh - 1 || Y0 < 0 || Y0 > templ_wh - 1) return;
+    if(x0 < 0 || x0 > w-1 || y0 < 0 || y0 > h-1) return;
+    if(X1 < 0 || X1 > templ_wh || Y1 < 0 || Y1 > templ_wh) return;
+    if(X0 > X1 || Y0 > Y1) return;
+    OMP_FOR()
+    for(int y = Y0; y < Y1; ++y){
+        uint16_t *out = &((uint16_t*)ima->data)[(y+y0)*w + x0];
+        double *in = &((double*)star->data)[y*templ_wh + X0];
+        for(int x = X0; x < X1; ++x, ++in, ++out){
+            double val = *in * mul;
+            *out = (val > 0xffff) ? 0xffff : (uint16_t)val;
+        }
+    }
+    ++n;
+}
+/*
+static void gen8(cc_IMG *ima){
+    static int n = 0;
+    OMP_FOR()
+    ;
+    ++n;
+}*/
 
 static int campoll(cc_capture_status *st, float *remain){
     if(capstat != CAPTURE_PROCESS){
@@ -80,46 +176,45 @@ static int campoll(cc_capture_status *st, float *remain){
 static int startexp(){
     if(capstat == CAPTURE_PROCESS) return FALSE;
     capstat = CAPTURE_PROCESS;
-    texpstart = dtime();
+    double Tnow = dtime(), dT = Tnow - texpstart;
+    if(dT < 0.) dT = 0.;
+    else if(dT > 1.) dT = 1.; // dT for fluctuations amplitude
+    if(Tstart < 0.) Tstart = Tnow;
+    texpstart = Tnow;
+    // recalculate center of field coordinates at moment of exp start
+    dX += (dtime() - Tstart) * settings.vX;
+    dY += (dtime() - Tstart) * settings.vY;
+    Xc = dX/settings.scale + settings.x0 - camera.array.xoff;
+    Yc = dY/settings.scale + settings.y0 - camera.array.yoff;
+    DBG("dX=%g, dY=%g; Xc=%d, Yc=%d", dX, dY, Xc, Yc);
+    // add fluctuations
+    double fx = settings.fluct * dT * (2.*drand48() - 1.); // [-fluct*dT, +fluct*dT]
+    double fy = settings.fluct * dT * (2.*drand48() - 1.);
+    DBG("fx=%g, fy=%g, Xfluct=%g, Yfluct=%g", fx,fy,Xfluct,Yfluct);
+    if(Xfluct + fx < -settings.fluct || Xfluct + fx > settings.fluct) Xfluct -= fx;
+    else Xfluct += fx;
+    if(Yfluct + fy < -settings.fluct || Yfluct + fy > settings.fluct) Yfluct -= fy;
+    else Yfluct += fy;
+    DBG("Xfluct=%g, Yfluct=%g, pix: %g/%g\n\n", Xfluct, Yfluct, Xfluct/settings.scale, Yfluct/settings.scale);
+    Xc += Xfluct/settings.scale; Yc += Yfluct/settings.scale;
+    test_template();
     return TRUE;
 }
 
-static void gen16(cc_IMG *ima){
-    static int n = 0;
-    int y1 = ima->h * curvbin, x1 = ima->w * curhbin;
-    OMP_FOR()
-    for(int y = 0; y < y1; y += curvbin){
-        uint16_t *d = &((uint16_t*)ima->data)[y*ima->w/curvbin];
-        for(int x = 0; x < x1; x += curhbin){ // sinusoide 100x200
-            //*d++ = (uint16_t)(((n+x)%100)/99.*65535.);
-            *d++ = (uint16_t)((1. + sin((n+x) * (2.*M_PI)/11.)*sin((n+y) * (2.*M_PI)/22.))*32767.);
-        }
-    }
-    ++n;
-}
-static void gen8(cc_IMG *ima){
-    static int n = 0;
-    int y1 = ima->h * curvbin, x1 = ima->w * curhbin;
-    OMP_FOR()
-    for(int y = 0; y < y1; y += curvbin){
-        uint8_t *d = &((uint8_t*)ima->data)[y*ima->w/curvbin];
-        for(int x = 0; x < x1; x += curhbin){ // sinusoide 100x200
-            //*d++ = (uint16_t)(((n+x)%100)/99.*65535.);
-            *d++ = (uint8_t)((1. + sin((n+x) * (2.*M_PI)/11.)*sin((n+y) * (2.*M_PI)/22.))*127.);
-        }
-    }
-    ++n;
-}
 
 static int camcapt(cc_IMG *ima){
+    DBG("Prepare, xc=%d, yc=%d, bitpix=%d", Xc, Yc, bitpix);
     if(!ima || !ima->data) return FALSE;
 #ifdef EBUG
     double t0 = dtime();
 #endif
     ima->bitpix = bitpix;
+    ima->w = camera.geometry.w;
+    ima->h = camera.geometry.h;
+    ima->bytelen = ima->w*ima->h*cc_getNbytes(ima);
     bzero(ima->data, ima->h*ima->w*cc_getNbytes(ima));
     if(bitpix == 16) gen16(ima);
-    else gen8(ima);
+   // else gen8(ima);
     DBG("Time of capture: %g", dtime() - t0);
     return TRUE;
 }
@@ -183,10 +278,9 @@ static int gett(float *t){
     return TRUE;
 }
 
-static int camsetbin(int h, int v){
-    DBG("set bin %dx%d", h, v);
-    curhbin = h; curvbin = v;
-    return TRUE;
+// Binning not supported, change scale instead!
+static int camsetbin(int _U_ h, int _U_ v){
+    return FALSE;
 }
 
 static int camshutter(_U_ cc_shutter_op s){
@@ -195,12 +289,15 @@ static int camshutter(_U_ cc_shutter_op s){
 
 static int camsetgeom(cc_frameformat *f){
     if(!f) return FALSE;
+    if(f->xoff > ARRAYW-2 || f->yoff > ARRAYH-2) return FALSE;
+    if(f->xoff < 0 || f->yoff < 0 || f->h < 0 || f->w < 0) return FALSE;
+    if(f->h + f->yoff > ARRAYH || f->w + f->xoff > ARRAYW) return FALSE;
     camera.geometry = *f;
     return TRUE;
 }
 
 static int camgetnam(char *n, int l){
-    strncpy(n, "Dummy camera", l);
+    strncpy(n, "Star generator", l);
     return TRUE;
 }
 
@@ -216,8 +313,8 @@ static int camggl(cc_frameformat *max, cc_frameformat *step){
 }
 
 static int camgetbin(int *binh, int *binv){
-    if(binh) *binh = curhbin;
-    if(binv) *binv = curvbin;
+    if(binh) *binh = 1;
+    if(binv) *binv = 1;
     return TRUE;
 }
 
@@ -282,14 +379,16 @@ static int whlgetnam(char *n, int l){
 
 // cmd, help, handler, ptr, min, max, type
 static cc_parhandler_t handlers[] = {
-    {"width", "width of star moving field", NULL, (void*)&settings.width, (void*)&wmin, NULL, CC_PAR_INT},
-    {"height", "height of star moving field", NULL, (void*)&settings.height, (void*)&hmin, NULL, CC_PAR_INT},
     {"xc", "x center of field in array coordinates", NULL, (void*)&settings.x0, NULL, NULL, CC_PAR_INT},
     {"yc", "y center of field in array coordinates", NULL, (void*)&settings.y0, NULL, NULL, CC_PAR_INT},
-    {"fwhm", "star FWHM, arcsec", NULL, (void*)&settings.fwhm, (void*)&fwhmmin, (void*)&fwhmmax, CC_PAR_DOUBLE},
+    {"fwhm", "stars min FWHM, arcsec", NULL, (void*)&settings.fwhm, (void*)&fwhmmin, (void*)&fwhmmax, CC_PAR_DOUBLE},
     {"scale", "CCD scale: arcsec/pix", NULL, (void*)&settings.scale, (void*)&scalemin, (void*)&scalemax, CC_PAR_DOUBLE},
-    {"mag", "star magnitude: 0m is 16384 ADUs per second per arcsec^2", NULL, (void*)&settings.mag, (void*)&magmin, (void*)&magmax, CC_PAR_DOUBLE},
-    //{"", "", NULL, (void*)&, (void*)&, (void*)&settings., CC_PAR_DOUBLE},
+    {"mag", "star magnitude: 0m is 0xffff/0xff (16/8 bit) ADUs per second", NULL, (void*)&settings.mag, (void*)&magmin, (void*)&magmax, CC_PAR_DOUBLE},
+    {"vx", "X axe drift speed (arcsec/s)", NULL, (void*)&settings.vX, (void*)&vmin, (void*)&vmax, CC_PAR_DOUBLE},
+    {"vy", "Y axe drift speed (arcsec/s)", NULL, (void*)&settings.vY, (void*)&vmin, (void*)&vmax, CC_PAR_DOUBLE},
+    {"fluct", "stars position fluctuations (arcsec per sec)", NULL, (void*)&settings.fluct, (void*)&fluctmin, (void*)&fluctmax, CC_PAR_DOUBLE},
+    {"beta", "Moffat `beta` parameter", NULL, (void*)&settings.beta, (void*)&betamin, NULL, CC_PAR_DOUBLE},
+    //{"", "", NULL, (void*)&settings., (void*)&, (void*)&, CC_PAR_DOUBLE},
     CC_PARHANDLER_END
 };
 
@@ -350,8 +449,8 @@ __attribute__ ((visibility("default"))) cc_Camera camera = {
     .pixX = 10.,
     .pixY = 10.,
     .field = (cc_frameformat){.h = 1024, .w = 1024, .xoff = 10, .yoff = 10},
-    .array = (cc_frameformat){.h = 1050, .w = 1050, .xoff = 0, .yoff = 0},
-    .geometry = {0},
+    .array = (cc_frameformat){.h = ARRAYH, .w = ARRAYW, .xoff = 0, .yoff = 0},
+    .geometry = {.xoff = 10, .yoff = 10, .h = 1024, .w = 1024},
 };
 
 __attribute__ ((visibility("default"))) cc_Focuser focuser = {
diff --git a/BASLER_cameras/basler.c b/BASLER_cameras/basler.c
index 3371010..638dc66 100644
--- a/BASLER_cameras/basler.c
+++ b/BASLER_cameras/basler.c
@@ -29,7 +29,7 @@
 extern cc_Camera camera;
 
 static PYLON_DEVICE_HANDLE hDev;
-static int isopened = FALSE, is16bit = FALSE;
+static int isopened = FALSE, bitdepth = 16;
 static char camname[BUFSIZ] = {0};
 static size_t payloadsize = 0; // size of imgBuf
 static unsigned char *imgBuf = NULL;
@@ -296,11 +296,12 @@ static int setdevno(int N){
 static int setbitdepth(int depth){
 #define MONON 4
     const char *fmts[MONON] = {"Mono16", "Mono14", "Mono12", "Mono10"};
+    const int depths[MONON] = {16, 14, 12, 10};
     if(depth == 0){ // 8 bit
         if(!PylonDeviceFeatureIsAvailable( hDev, "EnumEntry_PixelFormat_Mono8" )) return FALSE;
         PYLONFN(PylonDeviceFeatureFromString, hDev, "PixelFormat", "Mono8");
         green("Pixel format: Mono8\n");
-        is16bit = FALSE;
+        bitdepth = 8;
         DBG("8 bit");
     }else{ // 16 bit
         char buf[128];
@@ -310,12 +311,12 @@ static int setbitdepth(int depth){
             if(!PylonDeviceFeatureIsAvailable( hDev, buf)) continue;
             green("Pixel format: %s\n", fmts[i]);
             PYLONFN(PylonDeviceFeatureFromString, hDev, "PixelFormat", fmts[i]);
+            bitdepth = depths[i];
             break;
         }
         if(i == MONON) return FALSE;
 #undef MONON
-        is16bit = TRUE;
-        DBG("16 bit");
+        DBG("other bits");
     }
     PYLON_STREAMGRABBER_HANDLE hGrabber;
     PYLONFN(PylonDeviceGetStreamGrabber, hDev, 0, &hGrabber);
@@ -328,6 +329,12 @@ static int setbitdepth(int depth){
     return TRUE;
 }
 
+static int getbitdepth(uint8_t *d){
+    if(!d) return TRUE;
+    *d = bitdepth;
+    return TRUE;
+}
+
 // stub function: the capture process is blocking
 static int pollcapt(cc_capture_status *st, float *remain){
     if(st) *st = CAPTURE_READY;
@@ -369,7 +376,7 @@ static int capture(cc_IMG *ima){
     }
     int width = grabResult.SizeX, height = grabResult.SizeY, stride = grabResult.SizeX + grabResult.PaddingX;
     //TIMESTAMP("start converting");
-    if(is16bit){
+    if(bitdepth > 8){
         int s2 = stride<<1;
         OMP_FOR()
         for(int y = 0; y < height; ++y){
@@ -388,7 +395,7 @@ static int capture(cc_IMG *ima){
         }
     }
     //TIMESTAMP("image ready");
-    ima->bitpix = (is16bit) ? 16 : 8;
+    ima->bitpix = bitdepth;
     return TRUE;
 }
 
@@ -526,6 +533,7 @@ cc_Camera camera = {
     .setfanspeed = setfanspd,
     // getters:
     .getbrightness = fpfalse,
+    .getbitpix = getbitdepth,
     .getModelName = modelname,
     .getgain = getgain,
     .getmaxgain = gainmax,
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2f300cd..fc5eee2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,11 +29,6 @@ option(ASTAR "Artifical star plugin" OFF)
 # default flags
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -W -Wextra -fno-builtin-strlen")
 
-# change wrong behaviour with install prefix
-if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND CMAKE_INSTALL_PREFIX MATCHES "/usr/local")
-    message("Change default install path to /usr")
-    set(CMAKE_INSTALL_PREFIX "/usr")
-endif()
 message("Install dir prefix: ${CMAKE_INSTALL_PREFIX}")
 if(NOT DEFINED LOCALEDIR)
     if(DEBUG)
@@ -87,6 +82,7 @@ if(IMAGEVIEW)
     list(APPEND ${PROJ}_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
     add_definitions(-DIMAGEVIEW)
 endif()
+
 # Dummy and artifical star plugins
 if(DUMMY)
     add_subdirectory(Dummy_cameras)
diff --git a/FLI_cameras/CMakeLists.txt b/FLI_cameras/CMakeLists.txt
index fb9dc23..5f47ded 100644
--- a/FLI_cameras/CMakeLists.txt
+++ b/FLI_cameras/CMakeLists.txt
@@ -1,6 +1,7 @@
 cmake_minimum_required(VERSION 3.20)
 set(CCDLIB devfli)
 
+SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(${CCDLIB} REQUIRED fli>=1.71 usefull_macros)
 
diff --git a/FindCFITSIO.cmake b/FindCFITSIO.cmake
index 01dd612..0ad88b9 100644
--- a/FindCFITSIO.cmake
+++ b/FindCFITSIO.cmake
@@ -58,7 +58,7 @@ else (CFITSIO_INCLUDE_DIR AND CFITSIO_LIBRARIES)
     endif (NOT CFITSIO_FIND_QUIETLY)
   else (CFITSIO_FOUND)
     if (CFITSIO_FIND_REQUIRED)
-      message(STATUS "CFITSIO not found.")
+      message(FATAL_ERROR "CFITSIO not found.")
     endif (CFITSIO_FIND_REQUIRED)
   endif (CFITSIO_FOUND)
 
diff --git a/HIKROBOT_cameras/CMakeLists.txt b/HIKROBOT_cameras/CMakeLists.txt
index 43ad706..e8f06f4 100644
--- a/HIKROBOT_cameras/CMakeLists.txt
+++ b/HIKROBOT_cameras/CMakeLists.txt
@@ -1,6 +1,7 @@
 cmake_minimum_required(VERSION 3.20)
 set(CCDLIB devhikrobot)
 
+SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(${CCDLIB} REQUIRED mvs>=2.1 usefull_macros)
 
diff --git a/ZWO_cameras/CMakeLists.txt b/ZWO_cameras/CMakeLists.txt
index 3e30d9b..e25d39d 100644
--- a/ZWO_cameras/CMakeLists.txt
+++ b/ZWO_cameras/CMakeLists.txt
@@ -1,6 +1,7 @@
 cmake_minimum_required(VERSION 3.20)
 set(CCDLIB devzwo)
 
+SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR})
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(${CCDLIB} REQUIRED usefull_macros)
 
diff --git a/ccdcapture.h b/ccdcapture.h
index 3209da4..0cc71c3 100644
--- a/ccdcapture.h
+++ b/ccdcapture.h
@@ -101,8 +101,8 @@ typedef enum{
     RESULT_NUM
 } cc_hresult;
 
-// all setters and getters of Camera, Focuser and cc_Wheel should return TRUE if success or FALSE if failed or unsupported
-// camera
+// all setters and getters of Camera, Focuser and cc_Wheel should return TRUE if success or FALSE if failed or unsupported camera
+// each camera plugin must have functions check, startexposition, setexp, pollcapture and capture
 typedef struct{
     int (*check)();             // check if the device is available, connect and init
     int Ndevices;               // amount of devices found
@@ -123,7 +123,7 @@ typedef struct{
     int (*confio)(int s);       // configure IO-port
     int (*setio)(int s);        // set IO-port to given state
     int (*setframetype)(int l); // set frametype: 1 - light, 0 - dark
-    int (*setbitdepth)(int h);  // set bit depth : 1 - high (16 bit), 0 - low (8 bit)
+    int (*setbitdepth)(int h);  // set bit depth : 1 - high (16 bit), 0 - low (8 or other bit)
     int (*setfastspeed)(int s); // set readout speed: 1 - fast, 0 - low
     // geometry (if TRUE, all args are changed to suitable values)
     int (*setgeometry)(cc_frameformat *fmt); // set geometry in UNBINNED coordinates
diff --git a/ccdfunc.c b/ccdfunc.c
index 1c31fd2..545702e 100644
--- a/ccdfunc.c
+++ b/ccdfunc.c
@@ -535,12 +535,16 @@ static void closeall(){
 static cc_capture_status capt(){
     cc_capture_status cs;
     float tremain, tmpf;
+    if(!camera->pollcapture){
+        WARNX(_("Camera plugin have no capture polling funtion."));
+        return CAPTURE_ABORTED;
+    }
     while(camera->pollcapture(&cs, &tremain)){
         if(cs != CAPTURE_PROCESS) break;
         if(tremain > 0.1){
             verbose(2, _("%.1f seconds till exposition ends"), tremain);
-            if(camera->getTcold(&tmpf)) verbose(1, "CCDTEMP=%.1f", tmpf);
-            if(camera->getTbody(&tmpf)) verbose(1, "BODYTEMP=%.1f", tmpf);
+            if(camera->getTcold && camera->getTcold(&tmpf)) verbose(1, "CCDTEMP=%.1f", tmpf);
+            if(camera->getTbody && camera->getTbody(&tmpf)) verbose(1, "BODYTEMP=%.1f", tmpf);
         }
         if(tremain > 6.) sleep(5);
         else if(tremain > 0.9) sleep((int)(tremain+0.99));
@@ -570,7 +574,7 @@ cc_Camera *startCCD(){
 void closecam(){
     if(!camera) return;
     DBG("Close cam");
-    camera->close();
+    if(camera->close) camera->close();
     camera = NULL;
 }
 
@@ -581,8 +585,9 @@ int prepare_ccds(){
     void *dlh = NULL;
     if(!startCCD(&dlh)) return FALSE;
     if(GP->listdevices){
-        for(int i = 0; i < camera->Ndevices; ++i){
-            if(!camera->setDevNo(i)) continue;
+        if(!camera->getModelName) WARNX(_("Camera plugin have no model name getter"));
+        else for(int i = 0; i < camera->Ndevices; ++i){
+            if(camera->setDevNo && !camera->setDevNo(i)) continue;
             char modname[256];
             camera->getModelName(modname, 255);
             printf("Found camera #%d: %s\n", i, modname);
@@ -594,7 +599,7 @@ int prepare_ccds(){
         WARNX(_("Found %d cameras, you point number %d"), camera->Ndevices, num);
         goto retn;
     }
-    if(!camera->setDevNo(num)){
+    if(camera->setDevNo && !camera->setDevNo(num)){
         WARNX(_("Can't set active camera number"));
         goto retn;
     }
@@ -621,13 +626,16 @@ int prepare_ccds(){
     }
     if(GP->fanspeed > -1){
         if(GP->fanspeed > FAN_HIGH) GP->fanspeed = FAN_HIGH;
-        if(!camera->setfanspeed((cc_fan_speed)GP->fanspeed))
-            WARNX(_("Can't set fan speed"));
-        else verbose(0, _("Set fan speed to %d"), GP->fanspeed);
+        if(!camera->setfanspeed) WARNX(_("Camera plugin have no fun speed setter"));
+        else{
+            if(!camera->setfanspeed((cc_fan_speed)GP->fanspeed))
+                WARNX(_("Can't set fan speed"));
+            else verbose(0, _("Set fan speed to %d"), GP->fanspeed);
+        }
     }
     int x0,x1, y0,y1;
     char buf[BUFSIZ];
-    if(camera->getModelName(buf, BUFSIZ))
+    if(camera->getModelName && camera->getModelName(buf, BUFSIZ))
         verbose(2, _("Camera model: %s"), buf);
     verbose(2, _("Pixel size: %g x %g"), camera->pixX, camera->pixY);
     x0 = camera->array.xoff;
@@ -643,56 +651,57 @@ int prepare_ccds(){
                 camera->geometry.xoff + camera->geometry.w, camera->geometry.yoff + camera->geometry.h);
     verbose(2, _("Current format: %s"), buf);
     if(!isnan(GP->temperature)){
-        if(!camera->setT((float)GP->temperature))
-            WARNX(_("Can't set T to %g degC"), GP->temperature);
-        verbose(3, "SetT=%.1f", GP->temperature);
+        if(!camera->setT)WARNX(_("Camera plugin have no temperature setter"));
+        else{if(!camera->setT((float)GP->temperature)) WARNX(_("Can't set T to %g degC"), GP->temperature);
+            else verbose(3, "SetT=%.1f", GP->temperature);
+        }
     }
     float tmpf;
-    if(camera->getTcold(&tmpf)) verbose(1, "CCDTEMP=%.1f", tmpf);
-    if(camera->getTbody(&tmpf)) verbose(1, "BODYTEMP=%.1f", tmpf);
+    if(camera->getTcold && camera->getTcold(&tmpf)) verbose(1, "CCDTEMP=%.1f", tmpf);
+    if(camera->getTbody && camera->getTbody(&tmpf)) verbose(1, "BODYTEMP=%.1f", tmpf);
     if(GP->shtr_cmd > -1 && GP->shtr_cmd < SHUTTER_AMOUNT){
         const char *str[] = {"open", "close", "expose @high", "expose @low"};
         verbose(1, _("Shutter command: %s\n"), str[GP->shtr_cmd]);
-        if(!camera->shuttercmd((cc_shutter_op)GP->shtr_cmd))
+        if(!camera->shuttercmd || !camera->shuttercmd((cc_shutter_op)GP->shtr_cmd))
             WARNX(_("Can't run shutter command %s (unsupported?)"), str[GP->shtr_cmd]);
     }
     if(GP->confio > -1){
         verbose(1, _("Try to configure I/O port as %d"), GP->confio);
-        if(!camera->confio(GP->confio))
+        if(!camera->confio || !camera->confio(GP->confio))
             WARNX(_("Can't configure (unsupported?)"));
     }
     int tmpi;
     if(GP->getio){
-        if(camera->getio(&tmpi))
+        if(camera->getio && camera->getio(&tmpi))
             verbose(0, "CCDIOPORT=0x%02X\n", tmpi);
         else
             WARNX(_("Can't get IOport state (unsupported?)"));
     }
     if(GP->setio > -1){
         verbose(1, _("Try to write %d to I/O port"), GP->setio);
-        if(!camera->setio(GP->setio))
+        if(!camera->setio || !camera->setio(GP->setio))
             WARNX(_("Can't set IOport"));
     }
     if(GP->exptime < 0.) goto retn;
     if(!isnan(GP->gain)){
         DBG("Change gain to %g", GP->gain);
-        if(camera->setgain(GP->gain)){
-            camera->getgain(&GP->gain);
+        if(camera->setgain && camera->setgain(GP->gain)){
+            if(camera->getgain) camera->getgain(&GP->gain);
             verbose(1, _("Set gain to %g"), GP->gain);
         }else WARNX(_("Can't set gain to %g"), GP->gain);
     }
     if(!isnan(GP->brightness)){
-        if(camera->setbrightness(GP->brightness)){
-            camera->getbrightness(&GP->brightness);
+        if(camera->setbrightness && camera->setbrightness(GP->brightness)){
+            if(camera->getbrightness) camera->getbrightness(&GP->brightness);
             verbose(1, _("Set brightness to %g"), GP->brightness);
         }else WARNX(_("Can't set brightness to %g"), GP->brightness);
     }
     /*********************** expose control ***********************/
     if(GP->hbin < 1) GP->hbin = 1;
     if(GP->vbin < 1) GP->vbin = 1;
-    if(!camera->setbin(GP->hbin, GP->vbin)){
+    if(!camera->setbin || !camera->setbin(GP->hbin, GP->vbin)){
         WARNX(_("Can't set binning %dx%d"), GP->hbin, GP->vbin);
-        camera->getbin(&GP->hbin, &GP->vbin);
+        if(camera->getbin) camera->getbin(&GP->hbin, &GP->vbin);
     }
     if(GP->X0 < 0) GP->X0 = x0; // default values
     else if(GP->X0 > x1-1) GP->X0 = x1-1;
@@ -702,28 +711,29 @@ int prepare_ccds(){
     if(GP->Y1 < GP->Y0+1 || GP->Y1 > y1) GP->Y1 = y1;
     DBG("x1/x0: %d/%d", GP->X1, GP->X0);
     cc_frameformat fmt = {.w = GP->X1 - GP->X0, .h = GP->Y1 - GP->Y0, .xoff = GP->X0, .yoff = GP->Y0};
-    if(!camera->setgeometry(&fmt))
+    if(!camera->setgeometry || !camera->setgeometry(&fmt))
         WARNX(_("Can't set given geometry"));
     verbose(3, "Geometry: off=%d/%d, wh=%d/%d", fmt.xoff, fmt.yoff, fmt.w, fmt.h);
     if(GP->nflushes > 0){
-        if(!camera->setnflushes(GP->nflushes))
+        if(!camera->setnflushes || !camera->setnflushes(GP->nflushes))
             WARNX(_("Can't set %d flushes"), GP->nflushes);
         else verbose(3, "Nflushes=%d", GP->nflushes);
     }
+    if(!camera->setexp) ERRX(_("Camera plugin have no exposition setter"));
     if(!camera->setexp(GP->exptime))
         WARNX(_("Can't set exposure time to %f seconds"), GP->exptime);
     tmpi = (GP->dark) ? 0 : 1;
-    if(!camera->setframetype(tmpi))
+    if(!camera->setframetype || !camera->setframetype(tmpi))
         WARNX(_("Can't change frame type"));
     tmpi = (GP->_8bit) ? 0 : 1;
-    if(!camera->setbitdepth(tmpi))
+    if(!camera->setbitdepth || !camera->setbitdepth(tmpi))
         WARNX(_("Can't set bit depth"));
-    if(!camera->setfastspeed(GP->fast))
+    if(!camera->setfastspeed || !camera->setfastspeed(GP->fast))
         WARNX(_("Can't set readout speed"));
     else verbose(1, _("Readout mode: %s"), GP->fast ? "fast" : "normal");
     if(!GP->outfile) verbose(1, _("Only show statistics"));
     // GET binning should be AFTER setgeometry!
-    if(!camera->getbin(&GP->hbin, &GP->vbin))
+    if(!camera->getbin || !camera->getbin(&GP->hbin, &GP->vbin))
         WARNX(_("Can't get current binning"));
     verbose(2, "Binning: %d x %d", GP->hbin, GP->vbin);
     rtn = TRUE;
@@ -749,6 +759,7 @@ DBG("w=%d, h=%d", raw_width, raw_height);
         TIMESTAMP("Start next cycle");
         TIMEINIT();
         verbose(1, _("Capture frame %d"), j);
+        if(!camera->startexposition) ERRX(_("Camera plugin have no function `start exposition`"));
         if(!camera->startexposition()){
             WARNX(_("Can't start exposition"));
             break;
@@ -760,7 +771,7 @@ DBG("w=%d, h=%d", raw_width, raw_height);
         }
         verbose(2, _("Read grabbed image"));
         TIMESTAMP("Read grabbed");
-        //if(!camera) return;
+        if(!camera->capture) ERRX(_("Camera plugin have no function `capture`"));
         if(!camera->capture(&ima)){
             WARNX(_("Can't grab image"));
             break;
@@ -776,8 +787,8 @@ DBG("w=%d, h=%d", raw_width, raw_height);
             while((delta = time1 - dtime()) > 0.){
                 verbose(1, _("%d seconds till pause ends\n"), (int)delta);
                 float tmpf;
-                if(camera->getTcold(&tmpf)) verbose(1, "CCDTEMP=%.1f\n", tmpf);
-                if(camera->getTbody(&tmpf)) verbose(1, "BODYTEMP=%.1f\n", tmpf);
+                if(camera->getTcold && camera->getTcold(&tmpf)) verbose(1, "CCDTEMP=%.1f\n", tmpf);
+                if(camera->getTbody && camera->getTbody(&tmpf)) verbose(1, "BODYTEMP=%.1f\n", tmpf);
                 if(delta > 6.) sleep(5);
                 else if(delta > 0.9) sleep((int)(delta+0.99));
                 else usleep((int)(delta*1e6 + 1));
@@ -792,8 +803,8 @@ DBG("w=%d, h=%d", raw_width, raw_height);
 // cancel expositions and close camera devise
 void camstop(){
     if(camera){
-        camera->cancel();
-        camera->close();
+        if(camera->cancel) camera->cancel();
+        if(camera->close) camera->close();
     }
 }
 
@@ -823,6 +834,7 @@ static void *grabnext(void *arg){
         TIMESTAMP("Start next exp");
         TIMEINIT();
         if(!ima || !camera) return NULL;
+        if(!camera->startexposition) ERRX(_("Camera plugin have no function `start exposition`"));
         if(!camera->startexposition()){
             WARNX(_("Can't start exposition"));
             usleep(10000);
@@ -830,13 +842,14 @@ static void *grabnext(void *arg){
         }
         cc_capture_status cs = CAPTURE_ABORTED;
         TIMESTAMP("Poll");
-        while(camera->pollcapture(&cs, NULL)){
+        while(camera->pollcapture && camera->pollcapture(&cs, NULL)){
             if(cs != CAPTURE_PROCESS) break;
             usleep(10000);
             if(!camera) return NULL;
         }
         if(cs != CAPTURE_READY){ WARNX(_("Some error when capture")); return NULL;}
         TIMESTAMP("get");
+        if(!camera->capture) ERRX(_("Camera plugin have no function `capture`"));
         if(!camera->capture(ima)){ WARNX(_("Can't grab image")); continue; }
         ++ima->imnumber;
         //calculate_stat(ima);
diff --git a/locale/ru/messages.po b/locale/ru/messages.po
index a8b0e7c..61fb09a 100644
--- a/locale/ru/messages.po
+++ b/locale/ru/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-07 17:00+0300\n"
+"POT-Creation-Date: 2024-02-15 16:32+0300\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -358,198 +358,226 @@ msgstr ""
 msgid "Can't set wheel position %d"
 msgstr ""
 
-#: ccdfunc.c:541
+#: ccdfunc.c:539
+msgid "Camera plugin have no capture polling funtion."
+msgstr ""
+
+#: ccdfunc.c:545
 #, c-format
 msgid "%.1f seconds till exposition ends"
 msgstr ""
 
-#: ccdfunc.c:556
+#: ccdfunc.c:560
 msgid "Camera device not pointed"
 msgstr ""
 
-#: ccdfunc.c:563 ccdfunc.c:564
+#: ccdfunc.c:567 ccdfunc.c:568
 msgid "No cameras found"
 msgstr ""
 
-#: ccdfunc.c:594
+#: ccdfunc.c:588
+msgid "Camera plugin have no model name getter"
+msgstr ""
+
+#: ccdfunc.c:599
 #, c-format
 msgid "Found %d cameras, you point number %d"
 msgstr ""
 
-#: ccdfunc.c:598
+#: ccdfunc.c:603
 msgid "Can't set active camera number"
 msgstr ""
 
-#: ccdfunc.c:604
+#: ccdfunc.c:609
 msgid "Camera plugin have no custom commands"
 msgstr ""
 
-#: ccdfunc.c:625
+#: ccdfunc.c:629
+msgid "Camera plugin have no fun speed setter"
+msgstr ""
+
+#: ccdfunc.c:632
 msgid "Can't set fan speed"
 msgstr ""
 
-#: ccdfunc.c:626
+#: ccdfunc.c:633
 #, c-format
 msgid "Set fan speed to %d"
 msgstr ""
 
-#: ccdfunc.c:631
+#: ccdfunc.c:639
 #, c-format
 msgid "Camera model: %s"
 msgstr ""
 
-#: ccdfunc.c:632
+#: ccdfunc.c:640
 #, c-format
 msgid "Pixel size: %g x %g"
 msgstr ""
 
-#: ccdfunc.c:638
+#: ccdfunc.c:646
 #, c-format
 msgid "Full array: %s"
 msgstr ""
 
-#: ccdfunc.c:641
+#: ccdfunc.c:649
 #, c-format
 msgid "Field of view: %s"
 msgstr ""
 
-#: ccdfunc.c:644
+#: ccdfunc.c:652
 #, c-format
 msgid "Current format: %s"
 msgstr ""
 
-#: ccdfunc.c:647
-#, c-format
-msgid "Can't set T to %g degC"
+#: ccdfunc.c:654
+msgid "Camera plugin have no temperature setter"
 msgstr ""
 
 #: ccdfunc.c:655
 #, c-format
+msgid "Can't set T to %g degC"
+msgstr ""
+
+#: ccdfunc.c:664
+#, c-format
 msgid "Shutter command: %s\n"
 msgstr ""
 
-#: ccdfunc.c:657
+#: ccdfunc.c:666
 #, c-format
 msgid "Can't run shutter command %s (unsupported?)"
 msgstr ""
 
-#: ccdfunc.c:660
+#: ccdfunc.c:669
 #, c-format
 msgid "Try to configure I/O port as %d"
 msgstr ""
 
-#: ccdfunc.c:662
+#: ccdfunc.c:671
 msgid "Can't configure (unsupported?)"
 msgstr ""
 
-#: ccdfunc.c:669
+#: ccdfunc.c:678
 msgid "Can't get IOport state (unsupported?)"
 msgstr ""
 
-#: ccdfunc.c:672
-#, c-format
-msgid "Try to write %d to I/O port"
-msgstr ""
-
-#: ccdfunc.c:674
-msgid "Can't set IOport"
-msgstr ""
-
 #: ccdfunc.c:681
 #, c-format
+msgid "Try to write %d to I/O port"
+msgstr ""
+
+#: ccdfunc.c:683
+msgid "Can't set IOport"
+msgstr ""
+
+#: ccdfunc.c:690
+#, c-format
 msgid "Set gain to %g"
 msgstr ""
 
-#: ccdfunc.c:682
+#: ccdfunc.c:691
 #, c-format
 msgid "Can't set gain to %g"
 msgstr ""
 
-#: ccdfunc.c:687
+#: ccdfunc.c:696
 #, c-format
 msgid "Set brightness to %g"
 msgstr ""
 
-#: ccdfunc.c:688
+#: ccdfunc.c:697
 #, c-format
 msgid "Can't set brightness to %g"
 msgstr ""
 
-#: ccdfunc.c:694 server.c:265
+#: ccdfunc.c:703 server.c:278
 #, c-format
 msgid "Can't set binning %dx%d"
 msgstr ""
 
-#: ccdfunc.c:706 server.c:266
+#: ccdfunc.c:715 server.c:279
 msgid "Can't set given geometry"
 msgstr ""
 
-#: ccdfunc.c:710
+#: ccdfunc.c:719
 #, c-format
 msgid "Can't set %d flushes"
 msgstr ""
 
-#: ccdfunc.c:714
+#: ccdfunc.c:722
+msgid "Camera plugin have no exposition setter"
+msgstr ""
+
+#: ccdfunc.c:724
 #, c-format
 msgid "Can't set exposure time to %f seconds"
 msgstr ""
 
-#: ccdfunc.c:717
+#: ccdfunc.c:727
 msgid "Can't change frame type"
 msgstr ""
 
-#: ccdfunc.c:720
+#: ccdfunc.c:730
 msgid "Can't set bit depth"
 msgstr ""
 
-#: ccdfunc.c:722
+#: ccdfunc.c:732
 msgid "Can't set readout speed"
 msgstr ""
 
-#: ccdfunc.c:723
+#: ccdfunc.c:733
 #, c-format
 msgid "Readout mode: %s"
 msgstr ""
 
-#: ccdfunc.c:724
+#: ccdfunc.c:734
 msgid "Only show statistics"
 msgstr ""
 
-#: ccdfunc.c:727
+#: ccdfunc.c:737
 msgid "Can't get current binning"
 msgstr ""
 
-#: ccdfunc.c:751
+#: ccdfunc.c:761
 #, c-format
 msgid "Capture frame %d"
 msgstr ""
 
-#: ccdfunc.c:753 ccdfunc.c:827 server.c:150
+#: ccdfunc.c:762 ccdfunc.c:837 server.c:149 server.c:150
+msgid "Camera plugin have no function `start exposition`"
+msgstr ""
+
+#: ccdfunc.c:764 ccdfunc.c:839 server.c:155 server.c:156
 msgid "Can't start exposition"
 msgstr ""
 
-#: ccdfunc.c:758
+#: ccdfunc.c:769
 msgid "Can't capture image"
 msgstr ""
 
-#: ccdfunc.c:761
+#: ccdfunc.c:772
 msgid "Read grabbed image"
 msgstr ""
 
-#: ccdfunc.c:765 ccdfunc.c:840
+#: ccdfunc.c:774 ccdfunc.c:852 server.c:173 server.c:174
+msgid "Camera plugin have no function `capture`"
+msgstr ""
+
+#: ccdfunc.c:776 ccdfunc.c:853
 msgid "Can't grab image"
 msgstr ""
 
-#: ccdfunc.c:777 client.c:270
+#: ccdfunc.c:788 client.c:270
 #, c-format
 msgid "%d seconds till pause ends\n"
 msgstr ""
 
-#: ccdfunc.c:838
+#: ccdfunc.c:850
 msgid "Some error when capture"
 msgstr ""
 
-#: server.c:189
+#: server.c:201
 msgid "No camera device"
 msgstr ""
 
diff --git a/locale/ru/ru.po b/locale/ru/ru.po
index c7e138f..325c411 100644
--- a/locale/ru/ru.po
+++ b/locale/ru/ru.po
@@ -7,7 +7,7 @@
 msgid   ""
 msgstr  "Project-Id-Version: PACKAGE VERSION\n"
         "Report-Msgid-Bugs-To: \n"
-        "POT-Creation-Date: 2024-02-07 17:00+0300\n"
+        "POT-Creation-Date: 2024-02-15 16:32+0300\n"
         "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
         "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
         "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -16,12 +16,12 @@ msgstr  "Project-Id-Version: PACKAGE VERSION\n"
         "Content-Type: text/plain; charset=koi8-r\n"
         "Content-Transfer-Encoding: 8bit\n"
 
-#: ccdfunc.c:541
+#: ccdfunc.c:545
 #, c-format
 msgid   "%.1f seconds till exposition ends"
 msgstr  "%.1f секунд до окончания экспозиции"
 
-#: ccdfunc.c:777 client.c:270
+#: ccdfunc.c:788 client.c:270
 #, c-format
 msgid   "%d seconds till pause ends\n"
 msgstr  "%d секунд до окончания паузы\n"
@@ -38,7 +38,7 @@ msgstr  "
 msgid   "CMOS gain level"
 msgstr  "уровень Gain CMOS"
 
-#: ccdfunc.c:556
+#: ccdfunc.c:560
 msgid   "Camera device not pointed"
 msgstr  "Устройство свеоприемника не подключено"
 
@@ -46,32 +46,67 @@ msgstr  "
 msgid   "Camera device unknown"
 msgstr  "Устройство свеоприемника не опознано"
 
-#: ccdfunc.c:631
+#: ccdfunc.c:639
 #, c-format
 msgid   "Camera model: %s"
 msgstr  "Модель светоприемника: %s"
 
-#: ccdfunc.c:604
+#: ccdfunc.c:539
+#, fuzzy
+msgid   "Camera plugin have no capture polling funtion."
+msgstr  "У плагина камеры нет особых команд"
+
+#: ccdfunc.c:609
 msgid   "Camera plugin have no custom commands"
 msgstr  "У плагина камеры нет особых команд"
 
-#: ccdfunc.c:758
+#: ccdfunc.c:722
+#, fuzzy
+msgid   "Camera plugin have no exposition setter"
+msgstr  "У плагина камеры нет особых команд"
+
+#: ccdfunc.c:629
+#, fuzzy
+msgid   "Camera plugin have no fun speed setter"
+msgstr  "У плагина камеры нет особых команд"
+
+#: ccdfunc.c:774 ccdfunc.c:852 server.c:173 server.c:174
+#, fuzzy
+msgid   "Camera plugin have no function `capture`"
+msgstr  "У плагина камеры нет особых команд"
+
+#: ccdfunc.c:762 ccdfunc.c:837 server.c:149 server.c:150
+#, fuzzy
+msgid   "Camera plugin have no function `start exposition`"
+msgstr  "У плагина камеры нет особых команд"
+
+#: ccdfunc.c:588
+#, fuzzy
+msgid   "Camera plugin have no model name getter"
+msgstr  "У плагина камеры нет особых команд"
+
+#: ccdfunc.c:654
+#, fuzzy
+msgid   "Camera plugin have no temperature setter"
+msgstr  "У плагина камеры нет особых команд"
+
+#: ccdfunc.c:769
 msgid   "Can't capture image"
 msgstr  "Не могу захватить изображение"
 
-#: ccdfunc.c:717
+#: ccdfunc.c:727
 msgid   "Can't change frame type"
 msgstr  "Не могу изменить тип кадра"
 
-#: ccdfunc.c:662
+#: ccdfunc.c:671
 msgid   "Can't configure (unsupported?)"
 msgstr  "Не могу сконфигурировать (опция не поддерживается?)"
 
-#: ccdfunc.c:669
+#: ccdfunc.c:678
 msgid   "Can't get IOport state (unsupported?)"
 msgstr  "Не могу получить состояние порта I/O (не поддерживается?)"
 
-#: ccdfunc.c:727
+#: ccdfunc.c:737
 msgid   "Can't get current binning"
 msgstr  "Не могу получить текущее значение биннинга"
 
@@ -87,7 +122,7 @@ msgstr  "
 msgid   "Can't get max wheel position"
 msgstr  "Не могу определить предельную позицию колеса"
 
-#: ccdfunc.c:765 ccdfunc.c:840
+#: ccdfunc.c:776 ccdfunc.c:853
 msgid   "Can't grab image"
 msgstr  "Не могу захватить изображение"
 
@@ -107,7 +142,7 @@ msgstr  "
 msgid   "Can't open OpenGL window, image preview will be inaccessible"
 msgstr  "Не могу открыть окно OpenGL, отображение будет недоступно"
 
-#: ccdfunc.c:657
+#: ccdfunc.c:666
 #, c-format
 msgid   "Can't run shutter command %s (unsupported?)"
 msgstr  "Не могу выполнить команду затвора %s (не поддерживается?)"
@@ -117,21 +152,21 @@ msgstr  "
 msgid   "Can't save file with prefix %s"
 msgstr  "Не могу сохранить файл с префиксом %s"
 
-#: ccdfunc.c:710
+#: ccdfunc.c:719
 #, c-format
 msgid   "Can't set %d flushes"
 msgstr  "Не могу установить %d сбросов"
 
-#: ccdfunc.c:674
+#: ccdfunc.c:683
 msgid   "Can't set IOport"
 msgstr  "Не могу поменять значения порта I/O"
 
-#: ccdfunc.c:647
+#: ccdfunc.c:655
 #, c-format
 msgid   "Can't set T to %g degC"
 msgstr  "Не могу установить температуру в %g градЦ"
 
-#: ccdfunc.c:598
+#: ccdfunc.c:603
 msgid   "Can't set active camera number"
 msgstr  "Не могу установить номер активной камеры"
 
@@ -143,35 +178,35 @@ msgstr  "
 msgid   "Can't set active wheel number"
 msgstr  "Не могу установить номер активного колеса"
 
-#: ccdfunc.c:694 server.c:265
+#: ccdfunc.c:703 server.c:278
 #, c-format
 msgid   "Can't set binning %dx%d"
 msgstr  "Не могу установить биннинг %dx%d"
 
-#: ccdfunc.c:720
+#: ccdfunc.c:730
 msgid   "Can't set bit depth"
 msgstr  "Не могу установить разрядность АЦП"
 
-#: ccdfunc.c:688
+#: ccdfunc.c:697
 #, c-format
 msgid   "Can't set brightness to %g"
 msgstr  "Не могу установить яркость в %g"
 
-#: ccdfunc.c:714
+#: ccdfunc.c:724
 #, c-format
 msgid   "Can't set exposure time to %f seconds"
 msgstr  "Не могу установить экспозицию в %f секунд"
 
-#: ccdfunc.c:625
+#: ccdfunc.c:632
 msgid   "Can't set fan speed"
 msgstr  "Не могу установить скорость вентиляторов"
 
-#: ccdfunc.c:682
+#: ccdfunc.c:691
 #, c-format
 msgid   "Can't set gain to %g"
 msgstr  "Не могу установить Gain в %g"
 
-#: ccdfunc.c:706 server.c:266
+#: ccdfunc.c:715 server.c:279
 msgid   "Can't set given geometry"
 msgstr  "Не могу установить геометрию"
 
@@ -185,7 +220,7 @@ msgstr  "
 msgid   "Can't set position %g: out of limits [%g, %g]"
 msgstr  "Не могу установить позицию %g: вне пределов [%g, %g]"
 
-#: ccdfunc.c:722
+#: ccdfunc.c:732
 msgid   "Can't set readout speed"
 msgstr  "Не могу установить скорость считывания"
 
@@ -194,16 +229,16 @@ msgstr  "
 msgid   "Can't set wheel position %d"
 msgstr  "Не могу установить положение колеса %d"
 
-#: ccdfunc.c:753 ccdfunc.c:827 server.c:150
+#: ccdfunc.c:764 ccdfunc.c:839 server.c:155 server.c:156
 msgid   "Can't start exposition"
 msgstr  "Не могу начать экспозицию"
 
-#: ccdfunc.c:751
+#: ccdfunc.c:761
 #, c-format
 msgid   "Capture frame %d"
 msgstr  "Захват кадра %d"
 
-#: ccdfunc.c:644
+#: ccdfunc.c:652
 #, c-format
 msgid   "Current format: %s"
 msgstr  "Текущий формат: %s"
@@ -221,7 +256,7 @@ msgstr  "
 msgid   "Error saving file"
 msgstr  "Ошибка сохранения файла"
 
-#: ccdfunc.c:641
+#: ccdfunc.c:649
 #, c-format
 msgid   "Field of view: %s"
 msgstr  "Поле зрения: %s"
@@ -235,7 +270,7 @@ msgstr  "
 msgid   "Focuser device not pointed"
 msgstr  "Устройство фокусера не указано"
 
-#: ccdfunc.c:594
+#: ccdfunc.c:599
 #, c-format
 msgid   "Found %d cameras, you point number %d"
 msgstr  "Обнаружено %d камер, вы указали %d"
@@ -250,7 +285,7 @@ msgstr  "
 msgid   "Found %d wheels, you point number %d"
 msgstr  "Обнаружено %d колес, вы указали %d"
 
-#: ccdfunc.c:638
+#: ccdfunc.c:646
 #, c-format
 msgid   "Full array: %s"
 msgstr  "Полный формат: %s"
@@ -273,11 +308,11 @@ msgstr  "
 msgid   "N flushes before exposing (default: 1)"
 msgstr  "N засвечиваний перед экспозицией (по умолчанию: 1)"
 
-#: server.c:189
+#: server.c:201
 msgid   "No camera device"
 msgstr  "Не указано устройство камеры"
 
-#: ccdfunc.c:563 ccdfunc.c:564
+#: ccdfunc.c:567 ccdfunc.c:568
 msgid   "No cameras found"
 msgstr  "Камер не обнаружено"
 
@@ -289,20 +324,20 @@ msgstr  "
 msgid   "No wheels found"
 msgstr  "Турелей не обнаружено"
 
-#: ccdfunc.c:724
+#: ccdfunc.c:734
 msgid   "Only show statistics"
 msgstr  "Только отобразить статистику"
 
-#: ccdfunc.c:632
+#: ccdfunc.c:640
 #, c-format
 msgid   "Pixel size: %g x %g"
 msgstr  "Размер пикселя: %g x %g"
 
-#: ccdfunc.c:761
+#: ccdfunc.c:772
 msgid   "Read grabbed image"
 msgstr  "Считывание изображения"
 
-#: ccdfunc.c:723
+#: ccdfunc.c:733
 #, c-format
 msgid   "Readout mode: %s"
 msgstr  "Режим считывания: %s"
@@ -311,36 +346,36 @@ msgstr  "
 msgid   "Server timeout"
 msgstr  "Таймаут сервера"
 
-#: ccdfunc.c:687
+#: ccdfunc.c:696
 #, c-format
 msgid   "Set brightness to %g"
 msgstr  "Установить яркость в %g"
 
-#: ccdfunc.c:626
+#: ccdfunc.c:633
 #, c-format
 msgid   "Set fan speed to %d"
 msgstr  "Не могу установить скорость вентиляторов в %d"
 
-#: ccdfunc.c:681
+#: ccdfunc.c:690
 #, c-format
 msgid   "Set gain to %g"
 msgstr  "Установить Gain в %g"
 
-#: ccdfunc.c:655
+#: ccdfunc.c:664
 #, c-format
 msgid   "Shutter command: %s\n"
 msgstr  "Команда затвора: %s\n"
 
-#: ccdfunc.c:838
+#: ccdfunc.c:850
 msgid   "Some error when capture"
 msgstr  "Ошибка при захвате"
 
-#: ccdfunc.c:660
+#: ccdfunc.c:669
 #, c-format
 msgid   "Try to configure I/O port as %d"
 msgstr  "Попытка сконфигурировать порт I/O как %d"
 
-#: ccdfunc.c:672
+#: ccdfunc.c:681
 #, c-format
 msgid   "Try to write %d to I/O port"
 msgstr  "Попытка записи %d в порт I/O"
diff --git a/server.c b/server.c
index d7c472f..28afd5f 100644
--- a/server.c
+++ b/server.c
@@ -132,7 +132,7 @@ static void fixima(){
     DBG("curformat: %dx%d", curformat.w, curformat.h);
     ima->h = raw_height;
     ima->w = raw_width;
-    if(!camera->getbitpix(&ima->bitpix)) ima->bitpix = 16;
+    if(!camera->getbitpix || !camera->getbitpix(&ima->bitpix)) ima->bitpix = 16;
     if(ima->bitpix < 8 || ima->bitpix > 16) ima->bitpix = 16; // use maximum in any strange cases
     ima->bytelen = raw_height * raw_width * cc_getNbytes(ima);
     DBG("new image: %dx%d", raw_width, raw_height);
@@ -145,8 +145,14 @@ static inline void cameraidlestate(){ // idle - wait for capture commands
         camflags &= ~(FLAG_STARTCAPTURE | FLAG_CANCEL);
         camstate = CAMERA_CAPTURE;
         fixima();
+        if(!camera->startexposition){
+            LOGERR(_("Camera plugin have no function `start exposition`"));
+            WARNX(_("Camera plugin have no function `start exposition`"));
+            camstate = CAMERA_ERROR;
+            return;
+        }
         if(!camera->startexposition()){
-            LOGERR("Can't start exposition");
+            LOGERR(_("Can't start exposition"));
             WARNX(_("Can't start exposition"));
             camstate = CAMERA_ERROR;
             return;
@@ -155,7 +161,7 @@ static inline void cameraidlestate(){ // idle - wait for capture commands
 }
 static inline void cameracapturestate(){ // capturing - wait for exposition ends
     cc_capture_status cs;
-    if(camera->pollcapture(&cs, &tremain)){
+    if(camera->pollcapture && camera->pollcapture(&cs, &tremain)){
         if(cs != CAPTURE_PROCESS){
             TIMESTAMP("Capture ready");
             tremain = 0.;
@@ -163,6 +169,12 @@ static inline void cameracapturestate(){ // capturing - wait for exposition ends
             if(!ima->data) LOGERR("Can't save image: not initialized");
             else{
                 TIMESTAMP("start capture");
+                if(!camera->capture){
+                    WARNX(_("Camera plugin have no function `capture`"));
+                    LOGERR(_("Camera plugin have no function `capture`"));
+                    camstate = CAMERA_ERROR;
+                    return;
+                }
                 if(!camera->capture(ima)){
                     LOGERR("Can't capture image");
                     camstate = CAMERA_ERROR;
@@ -195,18 +207,19 @@ static void* processCAM(_U_ void *d){
             signals(1);
         }
         usleep(100);
+        if(tremain < 0.5 && tremain > 0.) usleep(tremain*1e6);
         if(lock()){
             // log
             if(dtime() - logt > TLOG_PAUSE){
                 logt = dtime();
                 float t;
-                if(camera->getTcold(&t)){
+                if(camera->getTcold && camera->getTcold(&t)){
                     LOGMSG("CCDTEMP=%.1f", t);
                 }
-                if(camera->getThot(&t)){
+                if(camera->getThot && camera->getThot(&t)){
                    LOGMSG("HOTTEMP=%.1f", t);
                 }
-                if(camera->getTbody(&t)){
+                if(camera->getTbody && camera->getTbody(&t)){
                    LOGMSG("BODYTEMP=%.1f", t);
                 }
             }
@@ -214,7 +227,7 @@ static void* processCAM(_U_ void *d){
                 DBG("Cancel exposition");
                 LOGMSG("User canceled exposition");
                 camflags &= ~(FLAG_STARTCAPTURE | FLAG_CANCEL);
-                camera->cancel();
+                if(camera->cancel) camera->cancel();
                 camstate = CAMERA_IDLE;
                 infty = 0; // also cancel infinity loop
                 unlock();
@@ -244,14 +257,14 @@ static void* processCAM(_U_ void *d){
 // functions running @ each devno change
 static int camdevini(int n){
     if(!camera) return FALSE;
-    if(!camera->setDevNo(n)){
+    if(camera->setDevNo && !camera->setDevNo(n)){
         LOGERR("Can't set active camera number");
         return FALSE;
     }
     camdevno = n;
     LOGMSG("Set camera device number to %d", camdevno);
     cc_frameformat step;
-    camera->getgeomlimits(&frmformatmax, &step);
+    if(camera->getgeomlimits) camera->getgeomlimits(&frmformatmax, &step);
     curformat = frmformatmax;
     DBG("\n\nGeometry format max (offx/offy) w/h: (%d/%d) %d/%d", curformat.xoff, curformat.yoff,
         curformat.w, curformat.h);
@@ -262,8 +275,8 @@ static int camdevini(int n){
     if(GP->hbin < 1) GP->hbin = 1;
     if(GP->vbin < 1) GP->vbin = 1;
     fixima();
-    if(!camera->setbin(GP->hbin, GP->vbin)) WARNX(_("Can't set binning %dx%d"), GP->hbin, GP->vbin);
-    if(!camera->setgeometry(&curformat)) WARNX(_("Can't set given geometry"));
+    if(!camera->setbin || !camera->setbin(GP->hbin, GP->vbin)) WARNX(_("Can't set binning %dx%d"), GP->hbin, GP->vbin);
+    if(!camera->setgeometry || !camera->setgeometry(&curformat)) WARNX(_("Can't set given geometry"));
     return TRUE;
 }
 static int focdevini(int n){
@@ -312,13 +325,14 @@ static cc_hresult imsizehandler(int fd, const char *key, _U_ const char *val){
 }
 static cc_hresult camlisthandler(int fd, _U_ const char *key, _U_ const char *val){
     char buf[BUFSIZ], modname[256];
+    if(!camera->getModelName) return RESULT_FAIL;
     for(int i = 0; i < camera->Ndevices; ++i){
-        if(!camera->setDevNo(i)) continue;
-        camera->getModelName(modname, 255);
-        snprintf(buf, BUFSIZ-1, CC_CMD_CAMLIST "='%s'", modname);
-        if(!cc_sendstrmessage(fd, buf)) return RESULT_DISCONNECTED;
+        if(camera->setDevNo && !camera->setDevNo(i)) continue;
+            camera->getModelName(modname, 255);
+            snprintf(buf, BUFSIZ-1, CC_CMD_CAMLIST "='%s'", modname);
+            if(!cc_sendstrmessage(fd, buf)) return RESULT_DISCONNECTED;
     }
-    if(camdevno > -1) camera->setDevNo(camdevno);
+    if(camdevno > -1 && camera->setDevNo) camera->setDevNo(camdevno);
     return RESULT_SILENCE;
 }
 static cc_hresult camsetNhandler(_U_ int fd, _U_ const char *key, _U_ const char *val){
@@ -341,6 +355,7 @@ static cc_hresult exphandler(int fd, _U_ const char *key, const char *val){
         DBG("setexp to %s", val);
         double v = atof(val);
         if(v < DBL_EPSILON) return RESULT_BADVAL;
+        if(!camera->setexp) return RESULT_FAIL;
         if(camera->setexp(v)){
             GP->exptime = v;
         }else LOGWARN("Can't set exptime to %g", v);
@@ -427,10 +442,12 @@ static cc_hresult binhandler(_U_ int fd, const char *key, const char *val){
         if(b < 1) return RESULT_BADVAL;
         if(0 == strcmp(key, CC_CMD_HBIN)) GP->hbin = b;
         else GP->vbin = b;
+        if(!camera->setbin) return RESULT_FAIL;
         if(!camera->setbin(GP->hbin, GP->vbin)){
             return RESULT_BADVAL;
         }
     }
+    if(!camera->getbin) return RESULT_SILENCE;
     int r = camera->getbin(&GP->hbin, &GP->vbin);
     if(r){
         if(0 == strcmp(key, CC_CMD_HBIN)) snprintf(buf, 63, "%s=%d", key, GP->hbin);
@@ -445,6 +462,7 @@ static cc_hresult temphandler(int fd, _U_ const char *key, const char *val){
     float f;
     char buf[64];
     int r;
+    if(!camera->setT) return RESULT_FAIL;
     if(val){
         f = atof(val);
         r = camera->setT((float)f);
@@ -454,25 +472,31 @@ static cc_hresult temphandler(int fd, _U_ const char *key, const char *val){
         }
         LOGMSG("Set camera T to %.1f", f);
     }
+    if(!camera->getTcold) return RESULT_SILENCE;
     r = camera->getTcold(&f);
     if(r){
         snprintf(buf, 63, CC_CMD_CAMTEMPER "=%.1f", f);
         if(!cc_sendstrmessage(fd, buf)) return RESULT_DISCONNECTED;
-        r = camera->getTbody(&f);
-        if(r){
-            snprintf(buf, 63, "tbody=%.1f", f);
-            if(!cc_sendstrmessage(fd, buf)) return RESULT_DISCONNECTED;
+        if(camera->getTbody){
+            r = camera->getTbody(&f);
+            if(r){
+                snprintf(buf, 63, "tbody=%.1f", f);
+                if(!cc_sendstrmessage(fd, buf)) return RESULT_DISCONNECTED;
+            }
         }
-        r = camera->getThot(&f);
-        if(r){
-            snprintf(buf, 63, "thot=%.1f", f);
-            if(!cc_sendstrmessage(fd, buf)) return RESULT_DISCONNECTED;
+        if(camera->getThot){
+            r = camera->getThot(&f);
+            if(r){
+                snprintf(buf, 63, "thot=%.1f", f);
+                if(!cc_sendstrmessage(fd, buf)) return RESULT_DISCONNECTED;
+            }
         }
         return RESULT_SILENCE;
     }else return RESULT_FAIL;
 }
 static cc_hresult camfanhandler(int fd, _U_ const char *key, _U_ const char *val){
     char buf[64];
+    if(!camera->setfanspeed) return RESULT_FAIL;
     if(val){
         int spd = atoi(val);
         if(spd < 0) return RESULT_BADVAL;
@@ -487,6 +511,7 @@ static cc_hresult camfanhandler(int fd, _U_ const char *key, _U_ const char *val
 }
 const char *shutterstr[] = {"open", "close", "expose @high", "expose @low"};
 static cc_hresult shutterhandler(_U_ int fd, _U_ const char *key, const char *val){
+    if(!camera->shuttercmd) return RESULT_FAIL;
     if(val){
         int x = atoi(val);
         if(x < 0 || x >= SHUTTER_AMOUNT) return RESULT_BADVAL;
@@ -502,6 +527,7 @@ static cc_hresult shutterhandler(_U_ int fd, _U_ const char *key, const char *va
 }
 static cc_hresult confiohandler(_U_ int fd, _U_ const char *key, _U_ const char *val){
     char buf[64];
+    if(!camera->confio) return RESULT_FAIL;
     if(val){
         int io = atoi(val);
         int r = camera->confio(io);
@@ -515,6 +541,7 @@ static cc_hresult confiohandler(_U_ int fd, _U_ const char *key, _U_ const char
 static cc_hresult iohandler(_U_ int fd, _U_ const char *key, _U_ const char *val){
     char buf[64];
     int io;
+    if(!camera->setio) return RESULT_FAIL;
     if(val){
         io = atoi(val);
         int r = camera->setio(io);
@@ -529,11 +556,13 @@ static cc_hresult iohandler(_U_ int fd, _U_ const char *key, _U_ const char *val
 static cc_hresult gainhandler(_U_ int fd, _U_ const char *key, _U_ const char *val){
     char buf[64];
     float f;
+    if(!camera->setgain) return RESULT_FAIL;
     if(val){
         f = atof(val);
         int r = camera->setgain(f);
         if(!r) return RESULT_FAIL;
     }
+    if(!camera->getgain) return RESULT_SILENCE;
     int r = camera->getgain(&f);
     if(!r) return RESULT_FAIL;
     snprintf(buf, 63, CC_CMD_GAIN "=%.1f", f);
@@ -543,11 +572,13 @@ static cc_hresult gainhandler(_U_ int fd, _U_ const char *key, _U_ const char *v
 static cc_hresult brightnesshandler(_U_ int fd, _U_ const char *key, _U_ const char *val){
     char buf[64];
     float b;
+    if(!camera->setbrightness) return RESULT_FAIL;
     if(val){
         b = atof(val);
         int r = camera->setbrightness(b);
         if(!r) return RESULT_FAIL;
     }
+    if(!camera->getbrightness) return RESULT_SILENCE;
     int r = camera->getbrightness(&b);
     if(!r) return RESULT_FAIL;
     snprintf(buf, 63, CC_CMD_BRIGHTNESS "=%.1f", b);
@@ -561,6 +592,7 @@ static cc_hresult formathandler(int fd, const char *key, const char *val){
     cc_frameformat fmt;
     DBG("key=%s, val=%s", key, val);
     if(val){
+        if(!camera->setgeometry) return RESULT_FAIL;
         if(0 == strcmp(key, CC_CMD_FRAMEMAX)){
             DBG("CANT SET MAXFORMAT");
             return RESULT_BADKEY; // can't set maxformat
@@ -585,6 +617,7 @@ static cc_hresult formathandler(int fd, const char *key, const char *val){
 }
 static cc_hresult nflusheshandler(_U_ int fd, _U_ const char *key, _U_ const char *val){
     char buf[64];
+    if(!camera->setnflushes) return RESULT_FAIL;
     if(val){
         int n = atoi(val);
         if(n < 1) return RESULT_BADVAL;
@@ -627,6 +660,7 @@ static cc_hresult tremainhandler(_U_ int fd, _U_ const char *key, _U_ const char
 }
 static cc_hresult _8bithandler(int fd, _U_ const char *key, const char *val){
     char buf[64];
+    if(!camera->setbitdepth) return RESULT_FAIL;
     if(val){
         int s = atoi(val);
         if(s != 0 && s != 1) return RESULT_BADVAL;
@@ -640,6 +674,7 @@ static cc_hresult _8bithandler(int fd, _U_ const char *key, const char *val){
 }
 static cc_hresult fastspdhandler(int fd, _U_ const char *key, const char *val){
     char buf[64];
+    if(!camera->setfastspeed) return RESULT_FAIL;
     if(val){
         int b = atoi(val);
         if(b != 0 && b != 1) return RESULT_BADVAL;
@@ -652,6 +687,7 @@ static cc_hresult fastspdhandler(int fd, _U_ const char *key, const char *val){
 }
 static cc_hresult darkhandler(int fd, _U_ const char *key, const char *val){
     char buf[64];
+    if(!camera->setframetype) return RESULT_FAIL;
     if(val){
         int d = atoi(val);
         if(d != 0 && d != 1) return RESULT_BADVAL;
@@ -869,7 +905,7 @@ static cc_hresult infohandler(int fd, _U_ const char *key, _U_ const char *val){
     float f;
     int i;
     if(camera){
-        if(camera->getModelName(buf1, 255)){
+        if(camera->getModelName && camera->getModelName(buf1, 255)){
             snprintf(buf, BUFSIZ-1, CC_CMD_CAMLIST "='%s'", buf1);
             if(!cc_sendstrmessage(fd, buf)) return RESULT_DISCONNECTED;
         }
@@ -1027,7 +1063,7 @@ static cc_handleritem items[] = {
     {chkcc,  formathandler, CC_CMD_FRAMEFORMAT},
     {chkcc,  formathandler, CC_CMD_FRAMEMAX},
     {chkcc,  nflusheshandler, CC_CMD_NFLUSHES},
-    {chkcam, expstatehandler, CC_CMD_EXPSTATE},
+    {NULL,   expstatehandler, CC_CMD_EXPSTATE},
     {chktrue,shmemkeyhandler, CC_CMD_SHMEMKEY},
     {chktrue,imsizehandler, CC_CMD_IMWIDTH},
     {chktrue,imsizehandler, CC_CMD_IMHEIGHT},