SharpCap Forums

Live Stacking lets you save the stack in both 16-bit and 32-bit FITS files. In both cases the files need to be debayered. PIPP works to debayer the 16-bit files but gives an error "32 not supported" when I try to use it to debayer a 32-bit FITS file. I assume that I would always want to do...

I've been using SharpCap for a while now with a ZWO ASI294MC camera and always use the white balance Red and Blue sliders to line up the colors in the histogram. I'm planning to image the Rosette Nebula next and know it contains a very significant amount of red. Knowing this, how should I adjust my ...

Dave and Brian,

Many Thanks for your help in explaining this clearly. I'll be out Friday and Saturday evenings to do some tests with this new information!

Mark

Thanks Dave! I really appreciate your (and others) help. Unity Gain is at 117 according to the ZWO site. I'm curious to see just how long of an exposure will be required to get that number. I don't autoguide so it may not be possible.

Here is my final chart showing the Brightness setting required to get a Histogram minimum around 500, for several gain settings. My plan is to: 1) Use the Histogram Brain function to get recommended Gain/Exposure combinations and select one of the options along the curve. If I understand correctly, ...

Here's another with the gain at 350 and brightness at 45, color space at 16 Raw. I've attached the SharpCap screen as well as the FITS Liberator screen. You can see that the peak is also bimodal. https://beta-static.photobucket.com/images/aa470/poolemarkw/0/57d11169-1fcd-405e-b39b-065c6dee3f89-origi...

Here's the bimodal image, with gain at 150 (out of 570 max) and brightness at 15 (out of 80 max). The color space was Raw 16.

I performed the bias test on my ZWO ASI294 MC and yielded the following data. SharpCap offers a gain setting from 0-570 and brightness settings from 0-80. Does this look reasonable? I also noted that a couple of the gain settings produced bimodal histograms. Why would this be? Gain Brightness 100 10...

Thanks Dave! I've read through that thread a couple of times and understand that I should use the Offset (Brightness) that provided a centralized histogram of the bias frame at a selected gain. I'm uncertain as to Brian's suggestion to use the "minimum offset". How is that minimum determin...

Excellent, thanks!