Quote:
Originally Posted by AlexN
Without a doubt, the thing that speaks the loudest (pardon the pun..) is noise... A QHY8 or any other astro camera with the Sony ICX-453 sensor has such a low dark current that dark frames are completely unnecessary even when taking 20 to 30 minute frames.. Lets see you get noise free 30 minute subs from ANY DSLR, even the most expensive DSLR's like the Canon 1D mk III / 1D mk IV and the Nikon D3Xs / D700...
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Maybe the Sony based CCDs don't need dark frames for the current. You still need them for any hot pixels. My QHY8 has some.