Quote:
Originally Posted by TrevorW
Nice image needs a good few hours of integrated frames to bring out the detail. What the general consensus theses days with the latest CMOS cameras with darks and bias frames I've found that with my QQHY268c I don't need them.  |
Thanks Trevor
Whilst a OSC doesn’t collect the amount of signal like a Mono does , you can still produce some half decent narrowband images , it just requires a lot more data and processing
Under my Bortle 7/8 skies in Sydney , most of the brighter emission nebula require at least 4 to 5 hours minimum.But there is a point of diminishing return which for me is around 10 to 12 hours. With Mono the point of diminishing return is probably twice or three times that of Mono, obviously dependant upon each object and sky conditions.
It’s taken a while but I’ve got my 2600MC with the Antlia filter performing well under heavy light pollution.
As far as calibration goes with the 2600MC , I spent months testing different calibration combinations and techniques and found that Flats calibrated with Bias frames work best.
Darks are definitely not required for the 2600MC
Check out Cloudy Nights for folk using the 2600MC , the general consensus is Flats and Bias , with some folk opting for Dark Flats instead
Cheers
Martin