Thread: Helix Nebula
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Old 03-06-2013, 04:06 PM
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Jon (Jonathan)
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Join Date: Nov 2012
Location: Canberra
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Quote:
Originally Posted by alistairsam View Post
Hi Jonathan,

stacking more subs would reduce noise but if you're going for 5 mins, I'd suggest 800iso to keep noise low.
I'd also suggest dithering the subs, that would give you better noise reduction when stacking.
what ota were you using?
Colours and guiding look great.
Cheers
Hi Alistair,

Good advice. I've been meaning to work out the dithering function on BackyardEOS/PHD. I was using the 10" Meade SCT with f/6.3 flattener/reducer.
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