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02/06/2008 08:21:57 PM · #1 |
Something I've been noticing a lot while I process recently is that at 100% crop my images get quite grainy (I'll post an example). Although I've been shooting at ISO100 on my D200 I'm getting something that looks a little like high ISO noise, but noise ninja won't do anything about it and just produces horrible effects. Has anyone seen anything like the images below, or had a similar problem?
The image
[thumb]643440[/thumb]
At 100% crop
[thumb]643441[/thumb]
Cheers in advance. |
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02/06/2008 08:44:50 PM · #2 |
| it looks like you've done some post processing on it- could you show us the original crop without the PP? |
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02/06/2008 08:53:57 PM · #3 |
The pic does look PP, did you apply sharpening before noise reduction b/c that's what it look like. Are you shooting in raw or jpeg? If jpeg what setting do you have on the camera for sharpening? These could all be problems but it looks like sharpend noise to me.
Message edited by author 2008-02-06 20:54:26. |
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02/06/2008 08:56:45 PM · #4 |
No sharpening before noise reduction (in fact, no sharpening at all yet). I'm shooting RAW and the in camera sharpening is set down low.
[thumb]643465[/thumb] |
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02/06/2008 09:39:52 PM · #5 |
| was this properly exposed? Or did you have to push it in order to get back some detail in the shadows? |
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02/06/2008 09:43:57 PM · #6 |
Most often grain in images is caused by lack of light, or underexposure. Unless you're using flash units or strobes, a normal indoors light will not provide enough illumination for a portrait at ISO 100. You'll need to up ISO to compensate for lack of light, however, upping ISO can also cause image noise.
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02/06/2008 09:47:37 PM · #7 |
| This was about 1 stop underexposed, I couldn't get enough punch out of my strobes in this situation. I assume this could be one cause for the scratchy appearance of the shot, although it looks fine when zoomed out. |
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02/06/2008 09:52:52 PM · #8 |
I say that's your problem then, under exposure. From everything I have read it is better for noise control to bump the ISO and get the proper exposure then to shoot with a lower ISO and make up for it in raw. Even though you are shooting a higher ISO, you will manage much less noise then low ISO with under exposure.
Message edited by author 2008-02-06 21:53:18. |
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02/06/2008 10:34:36 PM · #9 |
RAW can help, but yes, bump the ISO if you need to, you'll get much better results.
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02/06/2008 11:29:09 PM · #10 |
what is wrong with the wide shot?
I like the wide shot, in case you did not.
Any how what Leroy said.
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