Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2021-09-26 03:33:27
UA_SEARCH_BOT_null @ 35.172.203.87

Nikon 45mm f/2.8P

Dual-Focus Aperture Series: Dolls (Canon 5DM3)

This dual-focus aperture series shows how focus shift can degrade image quality when stopped down as far as f/8 or f/11. Focus shift is caused by spherical aberration.

The Nikon 45mm f/2.8 P was used on the Canon 5D Mark III (with lens adapter). The 45/2.8 is a very simple Tessar design with only 4 lens elements in 3 groups, which allows few corrections. In particular, spherical aberration is unavoidable and this leads to focus shift.

Dolls

Images presented in the ProPhotoRGB color space in order to preserve the bright red tones. Use a colorspace-aware browser or the images will look quite dull and lifeless.

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.

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.