diglloyd
diglloyd publication
Imagery: Auto - Large Table of Contents
Schneider PC-TS 90/45  
Schneider PC-TS 90/45

Diffraction from f/4.5 - f/32, 90/4.5

The beauty of using tilt is that no resolution is lost to diffraction. For more on diffraction, see Making Sharp Images.

On the Nikon D3x, the negative effects of diffraction being to subtly appear by f/8, and there are clear losses of contrast by f/11 (with a high quality lens). MTF charts always show this clearly.

The deconvolution sharpening used here minimizes the sharpness losses from diffraction, so the crops shown are about as good as one can expect with the best sharpening technique.

The tilt function can help evade the image-degrading effects of diffraction: appropriate tilt can allow use of f/5.6 instead of f/16 or f/22, at least with some subjects where the wedge of sharpness achievable by tilt “fits” the subject matter.

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!
Using tilt (swing) to isolate the blue bicycle 
Click to view actual pixels aperture series

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