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EXCERPT page containing first few paragraphs. 2018-07-15 13:47:56

Sigma 135mm f/1.8 DG HSM Art

Aperture Series: Birds Eye View of Patriarch Grove (Nikon D850)

This series tests the Sigma 135mm f/1.8 DG HSM Art on the 45-megapixel Nikon D850 with a finely detailed distant landscape scene, where any lens weakness or field curvature pops out like a sore thumb.

New ground is broken here in textural detail; it leaves one wishing for more, because it sure looks like there is more to be had, if only the sensor had the resolving power.

Images presented at up to full 45 megapixel resolution from the Nikon D850.

Bird’s Eye View of Patriarch Grove

Adobe Camera Raw View ACR settings. Camera Profile=Adobe Standard. No lens corrections used.

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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.

Aperture series 1.8,2.8,4,5.6 available in full article

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