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03-01-2011, 03:29 AM   #1
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Noise Reduction Settings?

Just curious if there are good reasons not to put high iso nr to high on in camera settings? Does it effect the image quality or anything like that? Is it better to just keep it in auto?

03-01-2011, 04:05 AM   #2
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There is always give and take. Step up NR and you loose detail. Step it down and noise creeps back in.

Do you shoot JPEG or RAW?

If you tend to shoot RAW and post-process your own photos, I'd probably leave the defaults. It won't affect the RAW image and will still give you a decent idea of the image. You can do much better NR later with computer software than what the tiny camera processor can do at the time of shooting. I might even turn them down a bit to eliminate the loss of detail and sharpness and therefore get a slightly better idea of what the RAW image might look like. (preview is always a JPEG version of the RAW image, so you will always see a processed image until you get to your computer. At least turning down the settings reduces the JPEG processing.)

If you shoot JPEG, you'll probably have to play with the settings to see what you find acceptable.
Everyone is different. Some like the grain/noise. Some want smoothness regardless of the loss of detail. For the higher ISOs I'd probably bump up the NR a bit.
03-01-2011, 05:44 AM   #3
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The K-r review here suggests minimal noise reduction.

I tend to agree, especially with small(er) prints, the noise also gets 'reduced' somewhat.

Of course you see them in 100% crops, if you want to print that big. But then it's a matter of preference, and sometimes on the overall photo. How much detail would you want nr'd away .
03-01-2011, 05:45 AM   #4
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Experience (my own and stuff read everywhere on the web) suggests that with the K10D/K20D, you should use the lowest settting (apart from "none") for the best balance between noise and detail. With the newer bodies, I believe it should be about the same but I have not researched it.

03-01-2011, 10:21 AM   #5
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Do some research in this forum ..... I think it was Ash who put up a thread showing that actually the lowest setting wasn't the best. Whatever the settings were - that's what I set mine to on both my K7 & K5.
03-01-2011, 07:51 PM   #6
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QuoteOriginally posted by Frogfish Quote
Do some research in this forum ..... I think it was Ash who put up a thread showing that actually the lowest setting wasn't the best. Whatever the settings were - that's what I set mine to on both my K7 & K5.
Can you link what you are talking about? I've not been able to find it.
03-01-2011, 10:05 PM - 1 Like   #7
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QuoteOriginally posted by Metalwizards Quote
Can you link what you are talking about? I've not been able to find it.
''

Sorry I can't seem to find it now and I've just spent 30 mins looking for it ! If someone else here knows the link then we'd both be grateful !

Checking my K5 these are the recommended settings I've input :
80/100/200 - No NR
400/800/1600/3200/6400/12800 - low
25600/51200 - high
03-02-2011, 02:42 AM   #8
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QuoteOriginally posted by Frogfish Quote
Checking my K5 these are the recommended settings I've input :
80/100/200 - No NR
400/800/1600/3200/6400/12800 - low
25600/51200 - high
__________________
are this setting only K-5/K-7 specific or I can use it in K-r/K-x? I am not aware of such setting with K-x. Will have to check

03-03-2011, 09:49 AM   #9
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QuoteOriginally posted by hramat Quote
are this setting only K-5/K-7 specific or I can use it in K-r/K-x? I am not aware of such setting with K-x. Will have to check
The K-x does not have this capability, but the K-r does.

I normally have the noise reduction on my K-r set to Auto; the camera will apply the optimal degree of NR based on factors such as sensitivity, shutter speed, and image sensor temperature.

Last edited by bwDraco; 03-03-2011 at 10:07 AM.
03-03-2011, 11:56 AM   #10
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QuoteOriginally posted by Metalwizards Quote
Can you link what you are talking about? I've not been able to find it.
Found it ! It wasn't Ash who posted it but Adam - sorry Adam

https://www.pentaxforums.com/forums/pentax-dslr-discussion/106600-k-7-high-iso-success.html
03-03-2011, 08:59 PM   #11
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I have my NR off in all situations on my K-r and have been very happy with the results. I shoot JPEG only and don't go higher than 1600 ISO.
03-04-2011, 01:46 AM   #12
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So far I've been using neat image to remove the noise from shots. There are even profiles available. It also can be used as plug-in to photoshop.
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