diglloyd
diglloyd publication
Imagery: Auto - Large Table of Contents
Pentax 645D
Pentax 645D

Table of Lenses for Pentax 645D

Careful lens selection will allow getting as close to 40 megapixels as possible.

The table below captures some options for Pentax 645 lenses and related items.

Equivalent focal lengths vs 35mm DSLRs

The aspect ratio of the Pentax 645D is 4:3, so there is no correct focal length equivalent for a 3:2 DSLR.

The diagonal equivalent is the traditional metric, but is least useful in terms of making images; I think in terms of the horizontal span, but some photographers think in terms of the vertical span. Which is more useful depends on what types of prints you tend to make (e.g., 16 X 20 or 16 X 24). The differences are not large no matter which approach you take.

Article continues for subscribers...

If you’re already a subscriber, CLICK HERE TO LOG IN

diglloyd Advanced Photography

diglloyd Advanced Photography includes hundreds of pages of exclusive coverage and high resolution, Retina-grade example pictures detailing Canon and Nikon DSLR bodies and their lenses, with in-depth analysis of sharpness and contrast, color, bokeh, vignetting, distortion, MTF, and flare. Also included is a wealth of in-context technique and workflow insight. Since 2006, diglloyd Advanced Photography is the authoritative review and on-line reference for discerning Canon and Nikon shooters. Subscriptions cost $ per year.

  1. Explore the table of contents
  2. Check out Lloyd Chambers’ Blog
  3. Subscribe today!
Table of Lenses for Pentax 645D
Explanation of “35mm equiv”—
"long" = landscape orientation
"short" = portrait orientation
"diag" means format diagonal

diglloyd Home Page | Terms of Use | PRIVACY POLICY | Contact
Copyright © 2008-2015 diglloyd Inc, all rights reserved.