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EXCERPT page containing first few paragraphs. 2021-12-01 08:25:29

Canon 5DS R
Canon EF 16-35mm f/2.8L III USM

Examples #1 of 3: Conness Lakes Area, Brilliance on Snow

These examples, divided into multiple pages (this is #1) were shot on the 50-megapixel Canon 5DS R, which demands the very best from lenses, showing the least weakness. Indeed, even lenses like Zeiss Otus show limits at 50 megapixels.

Accordingly if a zoom lens can deliver good sharpness on 50 megapixels, it is quite an optical feat. These examples look at proving out that potentiality. But perhaps the most interesting consideration is how good the images look at the 6480 size, which is 28 megapixels—straddling the gap between many 24 megapixel cameras and as large as 30-megapixel Canon 5D Mark IV.

Examples also look at flare and contrast control.

Images shot at f/9 - f/13 have diffraction mitigating sharpening applied. Chromatic aberration has been corrected for most of these images.

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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.

Siberian Husky in its element
f8 @ 1/1000 sec, ISO 100; 2016-10-23 08:41:20
Canon EOS 5DS R + Canon EF 16-35mm f/2.8L III @ 35mm

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