Dear CNers, fellows, friends,
I've got my 163m from repair some time ago, but finally at the end of August there were two half-clear nights to give it a try...
My previous issue was described here:
My latest issue is that I can't fully calibrate out the single light image even with a single dark image. There's some amp-glow left. See here:
I am using the latest driver where they changed the gain/offset settings from scale 0-63 to 0-some 590 or 600 or so (using DSO preset and the thing for affecting speed of download have set to "5" (0-63 scale) forgot how is it named in QHY driver but that's the one that affects the amount of ampglow, low value = fast readout, less glow).
I believe that if you take a single dark and subtract a masterdark from it (or vice versa) you shall get a "random" noise only image (bottom left in my image) which is not the case for me.
Could someone/anyone who owns QHY163m provide to me one single dark frame (no matter what duration or cooling set point, but if it is around 5 min or close to it the better - my case is 5 min at -20). You may also add one single light frame so as I can calibrate it myself and see (create the same output as on my image).
many thanks to all of you!
RAW frames (FITs) could be got from here if interested:
the display is STF max in PixInsight (that reveals more then anything else). BTW that reminds me of a calibration issue I discovered this year, but due to zero free time I did not write a column on my old blog page yet :-( I am just saying that I recently faced myself dark frame calibration issue and resolved it (in CCD camera, not CMOS).
Edited by Konihlav, 19 September 2017 - 01:44 AM.