HiYall,
Ive taken my 1st set (20 subs) of Darks with the QHY 10 OSC (One Shot Color) 400 seconds @ -35deg. I did them between 2am & 4am after an image session on the triffid.
Strange thing to me is that they have come up brighter than the Light frames of the Triffid ?
I had the Newts 10" front Lid on and had a black towel wrapped about it, and also had another black towel around the rear Mirror cell end as its Not closed - so just thinking on the safe side
I was also catching some shut eye at the time in the Obs, so, no lamps on
All Dark sub are very identical, smooth even lighting over the entire chip !
But they have turned out a rather medium to light grey shade ??
Here is a couple of Screen Snips of a Dark Frame.
1st is (Full Frame) with a Linear streach & 2nd is same Linear Steach Dark @ 100% view,
3rd is (Full Frame with ArcSinH(x) Streach & 4th at 100% View with ArcSin(x) Streach ?
Also A Lightframe at Linear & ArcSin(x) Streaches !
Interesting seeing the Light Frames in the same streached manor and they are quite a bit Darker than the Darks
Normal or Not ?
Thanx ,,,,,