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Nikon D850
Sigma 105mm f/1.4 DG HSM Art

Color Shift When Stopping Down, Field Example, Warm Sunlight

This page evaluates the white balance and tint differences needed to properly color balance f/2 versus f/1.4. It was done before the SpyderCHECKR evaluation was done, and is thus an independent check uninfluenced by those findings. However, the lighting here is direct sunlight, whereas the SpyderCHECKR evaluation used skylight just after the sun dipped below the mountain peaks.

See also Color Shift with Stopping Down, SpyderCHECKR Card and the Mireds and Color Temperature Table.

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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 f1_4,f2_Compensated,f2_SameSettingsAsF1_4 available in full article
f1.4 @ 1/8000 sec, ISO 31; 2018-07-09 16:10:53
NIKON D850 + Sigma 105mm f/1.4 DG HSM Art

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