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Color Gamut Example: Glacial Blue Lake

See my Sony mirrorless wishlist and other wish lists at B&H Photo.

Added to my color gamut section of DAP is an example with rich blue tones.

Color Gamut Example: Glacial Blue Lake

The highly popular sRGB does a fine job of mashing the color here. Note also that Apple iOS (iPhone and iPad) ignores colorspace, and will also destroy the color.

The image is shown in the ProPhotoRGB, AdobeRGB and sRGB color spaces.

As a key point of interest, the Canon PIXMA Pro-10 printer (currently 35% off) and Canon PIXMA Pro-100 (currently 65% off) are 99.9% in-gamut for this image, whereas AdobeRGB clips the image color substantially, and sRGB totally mashes it flat.

In other words, a print can capture 99% of the color that is available in the ProPhotoRGB original image. These gamut warnings are shown on the above page. Thus this example is not an academic exercise, but a real-world demonstration that printers can and exceed AdobeRGB color gamut, and that AdobeRGB is problematic for fine art printing. All my work is done in 16-bit ProPhotoRGB for that and other reasons.

Toggle to compare. The DCI P3 D65 gamut is better than sRGB, but woefully unadequate compared to AdobeRGB.

Viewing these images: to see the differences, a wide gamut display is required. All variants will be displayed with incorrect color using Chrome or Firefox on some Macs (late 2015 iMac 5K in particular) due to bugs in those programs (use Apple Safari). iPad and iPhone require iOS 10 for proper viewing, though anything less than iPhone 7 models may not show proper color due to limited gamut.

Glacial Blue Lake
f5.6 @ 1/200 sec, ISO 100; 2016-08-19 11:22:58
Sony A7R II + Sony FE 50mm f/1.4 ZA

[low-res image for bot]
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