I have a couple of questions about using QHY cameras with Maxim, wondering if anybody is using these and were able to work around the issues I am having. I am currently using the QHY163M CMOS, and QHY5III178M guide camera. Using the latest ASCOM drivers from QHYCCD, I have the 163M set as Capture in the ASCOM drivers and QHY5III set as Guide. 1. Problem one, is I can't seem to expose (i.e. guide) from both cameras at the same time, if I try to expose the guide camera while the capture camera is exposing, the software will lock up "Reading from CCD" once the exposure is finished. I will have to close down Maxim, and unplug the cameras to get them working again? 2. The other problem, which I am not 100% sure about. But the manual says the QHY163M has a electronic shutter, but I don't see any options for the shutter in the drivers and Maxim doesn't seem to detect that a shutter is available and wants me to manually cover the camera when exposing darks?