Quote:
Originally Posted by Star Catcher
Well I do not profess to be clear on this matter.  I just took it to be the same as the unity gain on my 294MC graph where it shows 117 at the SHG point and so assumed that 100 point on the ASI2600 graph to be unity gain. I guess it really depends on whether you want or need the full dynamic range for your image. Also whether you are running with many short or longish exposures etc etc. In darker skies and looking to record faint nebulosty or subtle dust details above background you would run with 0 gain and go from there. |
Probably when I get it I will run a couple of test nights on a variety of targets. In a good night this time of year I can probably rely on getting about 100 X 5 minute subs, so a couple of nights shooting bright and dim targets at 0 and 100 gain X 50 subs each will be a worthwhile investment.