Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2019-09-21 07:02:39
UA_SEARCH_BOT_null @ 3.226.243.130

Leica S2

Color Bokeh

Color bokeh results from incomplete correction of chromatic errors. That includes lateral and chromatic aberration, spherochromaticism, etc. It is almost impossible to eliminate color bokeh without constraining the lens design in some serious way.

Keeping perspective

Not too much should be made of color bokeh; even Leica R or Leica M APO lenses show some color bokeh, as do even the best Nikon and Canon and Zeiss optics. Stopping down greatly reduces the effect, usually by f/4 things are “clean”.

I know of only two lenses that are truly free of color bokeh, the Coastal Optics 60mm f/4 UV-VIS-IR APO macro, and the Voigtlander 180mm f/4 APO macro, but those lenses are f/4 lenses, a major brightness compromise over an f/2.5 lens.

Devoid means something

Article continues for subscribers...

Diglloyd Medium Format is by yearly subscription. Subscribe now for about 33 cents a day ($120/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!

Diglloyd Medium Format covers medium format camera systems, including the Hasselblad X1D and Fujifilm GFX.

These systems are hugely expensive, so make the right choice for your own needs (full frame vs medium format).

  • In-depth lens evaluations covering behaviors not likely to be found anywhere else, based on real-world field shooting.
  • How to configure menus and buttons and best operating practices, gotchas and how-to.
  • Real world examples with insights found nowhere else. Make sharper images just by understanding lens and camera behaviors.
  • Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to 100 megapixels filling up to 5K display, plus large crops.
  • 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.
Leica S2 + Leica 70m f/2.5 Summarit-S ASPH @ f/2.8, 1/500 sec handheld, ISO 160

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.