python-microscope
Andor: Close the shutter when the camera is disabled
When the camera was disabled the external shutter is left open. It would be safer to leave the shutter closed when the camera is disabled.
Is closing/opening the external shutter a slow operation? Maybe the reason why it was not done is that the camera may have been disable only to change the exposure time or ROI (done via the keep_acquiring decorator).
The older Andor cameras had shutter that were notoriously unreliable. I heard of many cameras where these shutters failed rendering the camera useless. Once the EM gain is off the shutter doesn't really do much, especially for a camera permanently mounted on a system so we decided to just leave it open.
Maybe the shutters are now higher quality so it is more sensible to shut them on disable.
