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Robert
Here's Pinwheel with the ZWO ASI224MC (on my 80mm refractor f5.9) - 6x 20sec stacked in sharpcap (the darkish background is a fudge from altering contrast during stacking). I need to use a good UV/IR filter otherwise its a mess in my light polluted area. I've put up some other pics on AVF.
The 224 has a lot of amp glow. You can see it in the bottom right corner. And I'm too lazy to take darks. You can't do high gain and long subs, its one or the other, then stack. Most of the stuff I'm doing now is mid-gain & 5-10sec subs for a minute or two.
Chris
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