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Canon 5DS R

RAW vs sRAW: Sharpness, Tone, Color

Background: RAW vs mRAW / sRAW: Camera Cropping and Downsampling and File Size.

This comparison evaluates the use of full resolution raw format quality when downsampled to the same size as small raw (sRAW): 4320 X 2880.

Computer display context in 2015: the sRAW size of 4320 X 2880 more than fills a 4K display (3840 X 2160 or 4096 X 2160). It fills a 5K display (5120 X 2880 = 14.7 megapixels) vertically, but leaves 1000 pixels blank horizontally.

With 8K displays on the horizon, sRAW is a dubious choice even for personal images (pure viewing pleasure of photo realism), given that even mainstream displays are likely to be 4K in a year, and 5K and larger in a few years.

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Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.

Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.

  • Make better images by learning how to get the best results right away.
  • Save money by choosing the right lens for your needs the first time, particularly some of the new Sigma Art lenses vs Nikon and Canon.
  • Workflow discusses image organization, raw conversion and post processing. Many examples show processing parameters for direct insight into how the image was converted.
  • Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to full camera resolution, plus large crops [past 2 years or so].
  • Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
  • Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
  • Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.

Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Nikon or on Canon or on Pentax.

Variants RAW, sRAW, RAW Sharp available in full article

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