All changes relative to previous versions (G0 and G1 driver
version 1.1 and G2, G3 and G4 camera driver version 1.4) are the
same for both drivers.
Driver properties CanStopExposure and CanAbortExposure
were available only during exposure, so the user application cannot
determine value of these properties when the exposure was not in
If the user application omitted setting of sub-frame (or the
full size frame dimensions if no sub-frame was defined) prior to
exposure, image was cropped to default sub-frame.
Driver naturally performs CCD clear operation prior to every
exposure. However, when the camera is powered on, every part of the
CCD detector is usually flooded with electrons, so the single clear
operation is not enough to completely remove them. This caused
artifacts in the first image, caused by remaining electrons trapped
when the power was switched on. Although another image read cleared
the CCD (and the first image is never saved, it is always necessary
to check the field of view, focus etc.), new driver version clears
the CCD on background upon connection of the camera so the residual
electrons do not affect even the first downloaded image.
Drivers can be download from Download page of this site.