What is the default? do you mean the values displayed in the camera settings in ASCOM drive?
Exactly. In Sharpcap, I usually use the native driver, which doesn't seem to allow for adjusting it anyway. Since I posted that original response, though, I've started using the ASCOM driver's presets. At F4.8, I need to expose for about 15s with the minimum read noise setting to keep from over exposing. you can actually get a _lot_ of signal in 15s that way. you still need the same amount of total integration time, which means lots of sub-exposures, which means stacking takes a lot of time, but mount issues become a non-problem.
For really bright stuff, the max dynamic range setting is useful, but this requires much longer subs, obviously. I kinda missed the focus on this example, but you can see the dynamic range is pretty impressive.
