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EXCERPT page containing first few paragraphs. 2023-02-03 22:26:29

Use a 16-bit Wide-Gamut Color Space for RAW Conversion

Many RAW images must be converted to a wide-gamut 16-bit color space to preserve their dynamic range and color gamut, e.g., 16-bit ProPhotoRGB. In particular, bright colors and dark tones can be blown or pinned in individual color channels, either by using 8 bits, or by using a narrow-gamut color space such as sRGB or AdobeRGB. Of course, there are plenty of images that fit easily into the sRGB color space, but a reliable workflow cannot assume this.

No Nikon or Canon or Olympus or Fuji or etc camera offers any wide-gamut color space setting in the camera (for histogram purposes), an absurd situation given the ultra-wide dynamic range and color gamut of modern DSLRs which easily exceeds the AdobeRGB color space.

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Diglloyd Making Sharp Images articulates years of best practices and how-to, painstakingly learned over a decade of camera and lens evaluation.

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  • Eases into photographic challenges with an introductory section.
  • Covers aspects of digital sensor technology that relate to getting the best image quality.
  • Technique section discusses every aspect of making a sharp image handheld or on a tripod.
  • Depth of field and how to bypass depth of field limitations via focus stacking.
  • Optical aberrations: what they are, what they look like, and what to do about them.
  • MTF, field curvature, focus shift: insight into the limitations of lab tests and why imaging performance is far more complex than it appears.
  • Optical aberrations: what they are, what they look like, and what to do about them.
  • How to test a lens for a “bad sample”.

Intrigued? See Focusing Zeiss DSLR Lenses For Peak Performance, PART ONE: The Challenges, or (one topic of many) field curvature.

Converting from ProPhotoRGB color space to sRGB

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