Imagery: Auto - Large Table of Contents

EXCERPT page containing first few paragraphs. 2021-04-13 10:06:35

Fujifilm GFX

Enable javascript for this site to show Retina images, aperture series, image toggles, topics page menus and more.

Autofocus and Manual Focus in the Field

On paper, autofocus looks good, with a very large number of autofocus points, with the size of the focus point area selectable from spot to large—very nice. And in many if not most situations, the AF locks on brilliantly and exactly right. But not always, which means that I have to zoom in to check for critical focus.

The 63mm f/2.8 is a stepping motor lens* with crude in/out focusing driven by a noisy lens motor. I find this disconcerting at best after working with Nikon and Canon and Sigma’s ~silent modern autofocus. It’s just not the same quality experience. The 120/4 is better with its linear focusing motor, but the steady electronic hum while in use and clunking when not in use is not my cup of tea either. The focusing experience feels crude in comparison to 35mm DSLRs, to Sony mirrorless, to the Hasselblad X1D—well, it feels like medium format has been all along! Maybe other Fujifilm GF lenses will be better, but the 63/2.8 sets a disappointing precedent for a key lens in the lineup: I was expecting silent internal autofocus**. As far as I’m concerned, Zeiss native-mount primes for the GFX would be highly appropriate and welcome. Or for that matter, Sigma’s Art lens superior fit and finish and focusing.

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.
f6.4 @ 1/1800 sec, ISO 100; 2017-03-30 15:44:41
GFX 50S + Fujifilm GF 120mm f/4 Macro R LM OIS WR @ 98.2mm equiv (120mm)

[low-res image for bot]

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.