Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2020-08-08 08:17:03

45-megapixel Nikon D850
Sigma 28mm f/1.4 DG HSM Art

Examples: Dusk, Night, and Astrophotography

This pages looks at dusk, night and astrophotography.

Images at sizes up to full camera resolution.

Stars, 17 minutes @ f/2.2

I used f/2.2 to reduce vignetting but this also picked up lingering skylight of early night.

I’d call the results outstanding. The only nitpick is that the edges are not particularly sharp, though this does not affect the stars. Other tests show that the Sigma 28/1.4A really comes into its own at f/2.8.

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.

f2.2 @ 1038.0 sec, ISO 100; 2019-03-03 19:10:00
NIKON D850 + Sigma 28mm f/1.4 DG HSM Art
ENV: Alabama Hills, altitude 5000 ft / 1524 m, 48°F / 8°C
RAW: LACA corrected

[low-res image for bot]

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.