Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2023-12-02 00:13:01

Leica 45mm f/2.8 Elmarit-S ASPH

MTF Analysis for Leica 45mm f/2.8 Elmarit-S ASPH

Performance is optimized for infinity focus as can be seen at each aperture for infinity focus versus close focus (toggle to compare): at close range, the performance drops off substantially in the mid and outer zones. This drop-off may be increased field curvature, or it may be something else optical.

At f/2.8 the 45/2.8 delivers high sharpness in a limited central area, dropping off very quickly to the outer zones to levels that will not seem particularly crisp. At close range at f/2.8, the performance is unsatisfactory in the mid and outer zones. Whether this is field curvature or optical performance cannot be said from the graph alone—probably some of both and probably mostly field curvature, so that in a 3D sense the results may be much better, but not good at all for an infinity focus scene at f/2.8. Ditto for any planar subject, such as a group portrait or the side of a building straight-on.

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.

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2022 diglloyd Inc, all rights reserved.