Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2024-03-28 14:02:47
UA_SEARCH_BOT_null @ 34.205.246.61

For full access, subscribe here. Or click title to login.

Pentax 645D

Pentax-A 45mm f/2.8

I shot three trials for this example, choosing the best of the three to show here. Focusing the manual focus Pentax-A 45mm f/2.8 is hit-and-miss, even with the focus assist feature of the 645D.

Test scene

The test scene is shown below.

Lighting was late in the day, and to the eye was not great, but the golden tiles looked better than what the 45/2.8 was able to deliver— a result that is rather dull looking.

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 about 75 cents a day!

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.
Pentax 645D + Pentax-A 45mm f/2.8

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