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4.3.1 ISO Display
There are three ISO displays in the first segment of the denoise section.
The above display indicates the ISO sensitivity of the original exposure, the example here
being at “Image ISO Value: ISO 1600”.
Directly below are the mathematical analyses of the image noise.
Source image noise:
Here the noise in the image will be measured by a special process and assigned an
average ISO sensitivity, for example “Source image noise: 2.3% ISO 400”.
The analysed image then contains 2.3% noise.
Note: Don’t be disturbed by the fact that the ISO value of noise analysis does not match
the ISO number of the shot. Camera sensors react differently to the set sensitivity. This
is how noise properties are distinctly distinguished between a D810 and an EOS7D Mark
II.
The image noise must be based on an analysed ISO value, which will be displayed here.
Resulting image noise:
Directly under the source image noise you will find the analysed noise value for the result
image, in the example here “Result image noise 0.5% ISO 80”.
The ISO value can be reduced from ISO 400 to ISO 80 with the noise removal.
Note: Be careful not to denoise the images too much, since the natural look can be lost.
A result image noise of 0.5% to 1.0% is usually sufficient in most cases.
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