Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2020-09-19 10:50:25
UA_SEARCH_BOT_null @ 3.92.74.105

Nikon D810
Sigma 24mm f/1.4 DG HSM Art

Enable javascript for this site to show Retina images, aperture series, image toggles, topics page menus and more.

Aperture Series: Huge Barn Interior (Nikon D810)

This scene examines the Sigma 24mm f/1.4 DG HSM Art using focus that was intentionally placed at a medium distance, leaving both the background and foreground slightly out of focus, thus eliminating any doubt as to peak imaging performance wide open, and showing the zone of sharpness across the frame and near to far. The scene is excellent for assessing field curvature, the point spread function, and chromatic aberrations.

The limits of the Sigma 24mm f/1.4 DG HSM Art on a 36-megapixel sensor (Nikon D810), are clearly shown here. As a practical benefit, the scene reveals just how much stopping down for image quality is warranted for this kind of scene (depth of field requirements aside).

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.

Aperture series 1.4,2,2.8,4,5.6,8,11 available in full article

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.