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Originally Posted by LewisM
I agree about in camera noise reduction - works a LOT better than dark frames etc.
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In theory, it
shouldn't though - RAW should be raw, like ADU counts from CCD cameras (
but it's not).
I can understand that maintaining reciprocity of exposures and minimising appearance of thermal noise is preferable to 99.999% of DSLR shooters, but it's a shame that we don't get to make that choice in post!
Quote:
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It is annoying needing, say, a 10 minute total exposure for one frame of 5 minutes though.
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That's why there's a market for thermally regulated DSLRs and astro CCDs
Good luck solving your NEQ6 woes.
Quote:
Originally Posted by tilbrook@rbe.ne
That's amazing Dave!
The witch head is such a faint bugger, it's great to see it's possible with a standard lens!
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Thanks Justin! In retrospect, with such faint nebulosity and limited shooting time I probably would've done better doing normal separate dark frames plus shooting at f/2.8 (sacrificing some corner sharpness). Oh well... I'll probably point the mono CCD onto this region when I get it back.