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EXCERPT page containing first few paragraphs. 2017-10-22 14:01:54
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Sigma 14mm f/1.8 DG HSM Art

Examples: Eastern Sierra

This page shows ad-hoc examples from the Eastern Sierra Nevada.

In progress....

Small Aspen, early night

Wide open at early night, this 30 second exposures shows that f/1.8 at 14mm has very little depth of field, which means substantial separation between subject and its foreground and background.

This example and others at f/1.8 show that f/1.8 might be quite useful at times—few (well as of 2017, none) wide angle lenses offer this kind of subject separation at 14mm.

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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 28 megapixels filling up to 5K display, 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.

f1.8 @ 30.0 sec, ISO 64; 2017-09-22 19:36:12
NIKON D810 + Sigma 14mm f/1.8 DG HSM Art

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