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EXCERPT page containing first few paragraphs. 2021-12-04 04:21:02

Canon 5DS R

Noise at ISO 100, Native Resolution and at Canon 5DM3 Resolution (Dolls)

The crops on this page are from the Dolls example.

Here the f/5.6 frame is used, because it offers a nicely blurred background (which reveals noise) and because no extra diffraction-mitigating sharpening has been done.

The only legitimate comparison for noise is to compare at the same degree of enlargement: less enlargement is needed with 50 than with 22 megapixels (comparing per pixel noise is a fundamental error). Alternately another comparison is to downsample the 50 megapixel image to the resolution of a camera with fewer megapixels (the 23MP Canon 5D Mark III). To your author’s eye, the Canon 5DS R holds a clear lead on both counts over its 5DM3 sibling.

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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 RGB, red, green, blue, grayGamma2_2 available in full article

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