Comments on: A Common Over-saturation Misconception. Post-Processing Adult Skimmer Bills. And Evaluating and Comparing Similar Images … https://www.birdsasart-blog.com/baa/2018/08/22/a-common-over-saturation-misconception-post-processing-adult-skimmer-bills-and-evaluating-and-comparing-similar-images/ The blog of bird photographer Arthur Morris Fri, 24 Aug 2018 15:25:40 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: Bill https://www.birdsasart-blog.com/baa/2018/08/22/a-common-over-saturation-misconception-post-processing-adult-skimmer-bills-and-evaluating-and-comparing-similar-images/comment-page-1/#comment-1758550 Fri, 24 Aug 2018 15:25:40 +0000 http://www.birdsasart-blog.com/?p=57214#comment-1758550 In reply to Arthur Morris/BIRDS AS ART.

In practical terms, you are right, but…

Saturation clipping occurs in one or maybe two colours because it exceeds the gamut of the colour space at a given exposure. Often you can help get rid of saturation clipping by using Pro Photo RGB instead of Adobe RGB (or, heaven forbid, sRGB).

Luminance clipping is pure overexposure of all three RGB channels with color at pinned to 255, that’s luminance clipping.

The advantage of suffering only saturation clipping vs luminance clipping is that highlight recovery can often get back detail even if there’s only one channel of image data. It may be off color, but you can deal with that. However, if all three channels are blown, there ain’t nothing left to recover.

With ETTR, it’s the photographer’s job to know exactly what point the increase in exposure will just fall short of luminance clipping. The image itself may dictate whether or not saturation clipping is a problem.

]]> By: Arthur Morris/BIRDS AS ART https://www.birdsasart-blog.com/baa/2018/08/22/a-common-over-saturation-misconception-post-processing-adult-skimmer-bills-and-evaluating-and-comparing-similar-images/comment-page-1/#comment-1758544 Fri, 24 Aug 2018 11:33:43 +0000 http://www.birdsasart-blog.com/?p=57214#comment-1758544 In reply to Bill.

My thoughts are the the REDs or any other colors may be clipped on the histogram because they are over-saturated. If you decrease the Saturation or the Luminance during the RAW conversion, the color in question will often no longer show as clipped. My terminology may or may not be in error, but I am happy with the results.

with love, artie

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