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Nikon 14-24mm f/2.8G ED

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Focus Shift with Nikon 14-24 Cuts Resolution In Half!!!

In central areas, the 14-24 declines in sharpness when stopped down from f/2.8 to f/5.6 (focus shift).

While shooting the comparisons, I observed that the Nikon 14-24mm f/2.8G declined substantially in contrast from f/2.8 to f/5.6; this is visible in both the bristlecone comparison and the road comparison.

Focus shift to the rear

This is focus shift, but an unusual variety. In this case, the lens is optimized for wide open central sharpness and it offers high contrast without the usual haze.

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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 f/2.8, f/5.6, f/5.6 refocused available in full article
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