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DPChallenge Forums >> Tips, Tricks, and Q&A >> ISO 100 Grainny
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Showing posts 1 - 7 of 7, (reverse)
AuthorThread
 04/28/2005 05:13:47 PM · #1
Is it possible to have grainy shots with iso 100 without making long exposures? Like about 1/30s... does that make it noise for a photo?
 04/28/2005 05:15:07 PM · #2
you can add noise in post processing. Or by cropping and enlarging.

d
 04/28/2005 05:17:05 PM · #3
It all depends on what your shooting the darker the image higher the noise iam sure theres more to it but heres a start
04/28/2005 05:17:09 PM · #4
Originally posted by dahkota:
you can add noise in post processing. Or by cropping and enlarging.

d


No but my question is it possible that may canon 20D be grainny at ISO 100... at 1/30? that is not that long of exposure to create grainny shots... i am having one or another shot getting grainny at this low exposure.. and i think that should not be happining.
 04/28/2005 05:17:55 PM · #5
Originally posted by LEONJR:
It all depends on what your shooting the darker the image higher the noise iam sure theres more to it but heres a start

Yes it is a black background.
 04/28/2005 05:25:16 PM · #6
Well if your using a black back ground then you might wanna try over exposing by a half a stop or a stop right, then Since noise distribution is not unifrom accross RGB channels go throught the channles and see which one is the noisiest and do a despekle and noise filter also neat image and that ninja program are good i hear this method has worked for me i cant say it will for you but its worth a shot i'l try any thing once . . .

Leon

Message edited by author 2005-04-28 17:25:40.
 04/28/2005 06:07:22 PM · #7
Oh yea i forgot dont use alot of USM (unsharp mask) as that will enhance the grainy ness and noise
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