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EXCERPT page containing first few paragraphs. 2023-03-25 05:02:55

Nikon D810
AF-S Nikkor 20mm f/1.8G ED

Aperture Series: Pine Creek Sun Wedge (D810)

An infinity-focus landscape is among the most demanding tests of a lens, mercilessly revealing all shortcoming of both the optical design and the assembly quality of the lens. Thus a 20mm that can acquit itself well on this scene deserves praise.

Pine Creek sun wedge 2014-10-26 10:47

ACR 8.7 (287): ACR settings, Camera Profile = Camera Standard

Diffraction-mitigating sharpening was used for the f/11, f/13, f/16 frames as per Mitigating Micro Contrast Losses from Diffraction Blur in Making Sharp Images.

Exposures were shot EV-matched but did not turn out that way; as with other series, the 20/1.8G sometimes produces erratic and inconsistent brightness changes across its aperture range, for reasons not understood by your author. In this case the variance was minor; f/1.8 and f/2 were 1/6 stop brighter than expected.

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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.

Aperture series 1.8, 2, 2.8, 4, 5.6, 8, 13, 16 available in full article

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