diglloyd publication
Imagery: Auto - Large Table of Contents
Nikon AF-S Nikkor 24mm f/1.4G
Nikon AF-S Nikkor 24mm f/1.4G

Autofocus — Mis-focus Examples

I set out one evening to see if I could ferret out what causes the autofocus error. Thinking that perhaps some kind of lighting or other factor was involved, I shot a variety of images, but in the end the attempt was futile, my conclusion being that the 24/1.4G simply cannot be trusted for autofocus beyond roughly 30 feet (10 meters) or so.

These examples were taken with the Nikon D3x.

Click to view larger versions and crops.

Example 1

In this example, autofocus landed right in front of the tripod, about 10 feet away. An abysmal performance.

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!
Entire frame as shot, showing focus mark

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