I am still trying to figure out how go get best results for my equipment... in the beginning I tried to keep gain low but learnt that high gain is good and with propper darks no problem. Just forgot to adpt the offset. Now the question is which offset matches which gain?
That is what I thought might be a good setting. Top row is exposure time in sec, left column ist gain / offset. Camera ASI224. I tested gain 500 with offset 190 and it seemed to be good. From that on I estimated the lower settings. I prepared all the darks this morning and will test asap.
To match the gain and offset, I use this method suggested by Robin Glover, the creator of Sharpcap: https://forums.sharp...&start=50#p6863
Others recommend a gain a bit higher to make sure the bottom end isn't clipped, but his method should do that plus allow maximum headroom for the high end dynamic range. Use the same offset (or brightness if you want to call it that) for your darks, flats, and light frames.
Then use either the Smart Histogram as Noah suggested, SharpCap's Brain tool, or your own experience/needs to choose a gain and exposure setting.
I need to do a sensor analysis - so far I've just been winging it! Another great feature in SharpCap.
Shouldn't need to do that Sharpcap already has a sensor analysis for your cameras built into it. You can see the cameras for which sensor analyses are included in the SensorLibrary folder oh whatever directory you installed Sharpcap in (e.g, mine is C:\Program Files\Sharpcap 3.2 (64bit)).
Edited by donstim, 20 September 2020 - 03:16 PM.