Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2021-12-04 15:06:16
UA_SEARCH_BOT_null @ 54.227.97.219

Ergonomics

Measured against the Canon EF 50mm f/1.4 and EF 50mm f/1.2L, and arbitrarily calling the Canon EF 50/1.4 a 50.0 mm lens, the EF 50mm f/1.2L comes in at 49.2mm, but the Sigma is substantially wider at 46.6mm.

The foregoing was determined shooting a target with all 3 lenses and measuring the pixels covered by the same subject matter.

Mouse over to see the significant difference between the Sigma and the Canon EF 50mm f/1.4. Observe the much more even illumination of the Sigma as compared to the Canon 50/1.4.

Article continues for subscribers...

Diglloyd Advanced DSLR is by yearly subscription. Subscribe now for about 16 cents a day ($60/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!

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 Sigma, EF50f1_4 available in full article

Sigma 50/1.4: mouse over to see Canon EF 50/1.4

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2021 diglloyd Inc, all rights reserved.