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Mike this was taken with a 8” Newtonian 1000 mm fl using a zwo533mc r3008x3008 pixel scale is 1.22 pix using 2x2 bin so cropped very little .

Flats are the hardest calibration file get right , we all struggle at times especially with a big Newtonian, how are you doing your flats , I really struggled with flats on my newt 8” you really want a pretty even dim light source not too bright , I seem to have better results now I moved on to a Zw...

Thanks Mike I’m impressed how much detail was captured for so litte data , I tried again last night Trying Ivo’s HOO process in the duoband thread , using the default colouring no matrix colouring , I think more data will smooth the image if only I could get a clear night not as stretched as the fir...

First light with a l- extreme filter using a zwo533mc
Approx 3hrs of 180 Dec subs , first time processing my own duo band data ,

Hi Mike I’d like to keep as much signal as possible so I was thinking of rgb stars and as much Ha /o3 signal from the first set as possible , but chose m27 so I could compare the difference the l extreme makes compared to un filtered using my zwo533mc, I will have a dabble over the weekend and see w...

So last night I acquired about 3.5hrs of data on M27 using a l extreme filter, having previously got rgb data on a previous session now I’m assuming I need to stack all the data together then extract channels using compose mode , or do I stack and align separate stacks from each session assuming the...

Apparently Darks are mandatory with the zwo 1294 (Amp Glow) , try stacking with darks flats and bias or Dark Flats but not both .

Dave

Reprocess using calibration frames of M27 67x180 sec Dithered ,Flats,bias and Darks , Stacked in Astap,processed in Startools 1.8.506 , sw200pds , First light using Zwo533MC .

v1.8 should address this issue using nbaccent module .

Used 1.8 gpu version more times than not gpu version, not had any crashes win10 gpu nvidia 1060 card if memory serves me right .