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Occasional Contributor
Posts: 17
Registered: ‎11-14-2012

In camera noise reduction

5 D Mark III has settings for in camera noise reduction for higher ISO.


If postprocessing time is not a factor but maximum image quality is,

then would it be best to reduce the in camera noise reduction to minimal and use post processing software?

Super Contributor
Posts: 280
Registered: ‎11-12-2012

Re: In camera noise reduction

[ Edited ]

Not a scientific / empirical answer (i.e. I haven't done side by side comparisons), but I would think that in-camera noise reduction would give better quality.


As I understand it, the in-camera noise reduction works by taking a second exposure and reading the noise off the sensor, then taking out that noise as best as it can from your first exposure.  


Because that second exposure is in/with the exact same conditions (exposure time, ISO, temperature, etc, all of which affect sensor noise), its more accurate than a post-processing algorithm that has to try to interpret the image and decide what is noise, and then remove it.

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