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I don’t use Sharpcap pro but I read a few posts in the Sharpcap forum and they mentioned it will only dither in Live stacking mode ??
I use APT which is set up perfectly for dither commands from PHD2 and has a dither setting table you can use to calculate your total dither
Generally as a rule of thumb you want to dither about 8 to 10 pixels in each frame
A/ Calculate your Main Imaging Camera pixel scale -
Camera Pixel size uM x 206.3 / focal length of telescope = ?? arc sec per pixel
B/ Calculate your Guide Camera pixel scale -
Camera Pixel size uM x 206.3 / focal length of guide scope = ?? arc sec per pixel
Divide A over B to get your multiplier or ratio C
Set dither scale to 1 in PHD2
Find out in Sharpcap Pro it’s dither command scale ( if it even has one ?? )
For Example -
Dither 1 = 0.5 pixel
Dither 2 = 1.0 pixel
Dither 3 = 2.0 pixel
And so on.....
And then multiply C and a Sharpcap Dither scale to end up with a pixel amount close to 8 to 10 pixels
Hope the above makes sense
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