Hello AI,
i tested the ASI 1600 with Sharpcap / AstroLive USB and APT 3.13
The best performance had AstroLive USB , APT is also great and Sharpcap will be great i think. But in this moment on my Mac OS X mid 2010 , 6,1 AstroLive USB ( for 2 users and zwo cam free ) worked very stable . You have the possibility to see live colourimages of the objects after stacking and live processing the incoming images this is great ; ))). F.e. after 20 x 8 sec M57 appears with two central stars and beautifoul colour on the Mac screen.
( Mead 10 inch focal without filters , without darks a.s.o .) The Programm AstroLive work on Windows / Mac OS X both.
In the backround the programm saved all the unprocessed images to develope later f.e. in PI in fits format . And you can see live that the image would be better and better while stacking, denoising , removing the gradient, sharpen etc.
Look at the programm at AstroLive.io . In APT i found any crashes
running in Parallels 11 / Windows 7 prof on my Mac ( 1 Tb SSD / 8 Gbyte RAM/ intel 5 ), but the programm is very good to .
Best regards
Rainer