I attempted to grab some lunar shots last night and ran into an exposure problem.
I am using a SX-694 on a Skywatcher 190-MN /1000mm. The moon fills the frame.
Setting exposure to 0.00 I get a maximum ADU of around 4000, if I set the exposure time to 0.001 seconds (I believe the minimum exposure for ICX694 based cameras?) I get a blown out >65000adu image.
Does SGP handle 0.00s differently to 0.001s? Is the shutter controlled by SGP and not the camera and enough delay over USB2 to mean that 0.001s is actually a lot longer?
I am trying to understand the actual exposure time to decide which ND filter (suspect x64) that I need to make this work.