Francois, what is the issue with a rolling shutter for astrophotography? I thought only moving targets would get smeared by this type of shutter. I have also seen issues reported with global shutters and pattern noise. Is there a good explanation of the issues somewhere for AP?
My understanding is that those interline sensors are popular for space debris and satellite tracking. (Though, the sensors themselves are especially marketed for display panel inspection)
Edit: Perhaps to elaborate a bit more, the reason one might want a global shutter is when an instantaneous start and end time are required. For instance, rapid cadence photometry needs this to calibrate out zero-point fluctuations, orbital tracking to easily compute the lines of sight at beginning and end of exposure (though rolling shutters are perfectly deterministic), etc. For time-averaged anything, it's not really required. Hell, for time-averaged photometry, a constant livetime across the frame is not even required. As for interlines, their niche is when a global shutter is required as well as a lack of out-of-time events you would get from frame-tranfer CCDs. The price is that the quantum efficiency is halved.
Edited by Francois, 02 April 2019 - 08:57 AM.