Integration time

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gardenfish
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Integration time

Post by gardenfish » Tue Nov 08, 2016 3:29 pm

Is 2 hours each or L-R-G-B combined considered 8 hrs or 2 hours?
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MikeM
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Re: Integration time

Post by MikeM » Wed Nov 09, 2016 9:08 am

Interesting question. I would have to say that it would be 8 hours integration time.
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Doug
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Re: Integration time

Post by Doug » Thu Nov 10, 2016 8:26 pm

MikeM wrote:Interesting question. I would have to say that it would be 8 hours integration time.
True, total integration time.

However, I think the L channel is your image time.

For instance...Let's say you took:
10 - ten Minute Each of LRGB, 10*10=100 minutes for each, * 4 = 400 Minutes total integration time. Now your best channel will be L so the best time you could achieve is 100 minutes or 10 ten minute exposures.

Remember the Signal to Noise Ratio...

Now take a OSC camera and take the total integration time of 400 minutes. Now you would have 40 ten minute exposures for the same amount of time.

I think 40 ten minute exposures would yield a better image than 10 ten minute L. But then you get into that Mono is better than OSC debate.

I've always found the sweet spot for exposures is 30 subs. Doesn't matter if it was Mono or OSC. The Signal to Noise Ratio is so much better with 30 subs.

Lots of room for debate on this subject for sure.
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