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EXCERPT page containing first few paragraphs. 2019-07-19 08:52:11

Canon 5D Mark III
Sigma 24mm f/1.4 DG HSM A

Aperture Series: Bird of Paradise Flower (Canon 5DM3)

This series is at the near focusing limit of the Sigma 24mm f/1.4 DG HSM Art, 1:5.3 magnification. The lens hood was almost touching the flower.

While not true macro range, this is a very close focusing distance for a 24mm lens (especially an f/1.4), and performance often drops at such close range—but apparently not much with the Sigma 24/1.4A.

Bird of Paradise Flower

Adobe Camera Raw 8.8.0 (397). ACR settings. Camera Profile = Adobe Standard.

The light wasn’t ideal, and it’s hard to get just the right angle on the subject with a 24mm, but the results leave little doubt of high lens quality with very appealing blur characteristics. Sharpness should not be evaluated at a critical level due to possible movement (faint air movements). The contrast is what to look at, and it’s first class.

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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 1.4,2,2.8,4,5.6,8,13 available in full article

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