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Old Sep 23, 2010, 7:13 AM   #1
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Default Negative contrast, sharpness, NR etc.

I have an FZ35 but guess this question applies to all cameras,

Does a NR adjustment of zero mean no adjustment? If so, does -1 mean it's adding noise?

Similarly, does a sharpness adjustment of 0 mean no adjustment? If so, does -1 means it is blurring the image?

Probably a noob question but just made me wonder what the numbers really mean.
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Old Sep 23, 2010, 9:24 AM   #2
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"0" implies no or minimal NR or sharpening, "1" is the next level up in noise reduction or sharpening. Default settings are typically at a middle numeric value of the range available. I haven't seen NR and sharpening use negative values on NR and sharpening, just contrast and saturation but the setting of the scales varies by manufacturer and model. No standard. I'd think that negative values exist on some cameras for NR and sharpening then it means that "0" is not no NR/sharpening.

A. C.

Last edited by ac.smith; Sep 23, 2010 at 9:31 AM.
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Old Sep 23, 2010, 10:20 AM   #3
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Manufacturers' settings of '0' are generally a compromise, and shouldn't imply that NO sharpening, NR, etc. is being done. It is a level which looks 'normal' to whoever were the testing the camera designs. Using negative values just means you are selecting less of the option. In many, or most cases, if the intent is to post-process a jpeg, selecting negative values can give you better results after the PP.

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