EXCERPT page containing first few paragraphs. 2024-05-09 12:58:57
UA_SEARCH_BOT_compatible_botmozilla/5.0 applewebkit/537.36 (khtml, like gecko; compatible; claudebot/1.0; +claudebot@anthropic.com) @ 3.144.16.254
For full access, subscribe here. Or click title to login. 
Fujifilm GFX100S: Focus BKT @ 67mm Fails to Reach INF (Leavitt Meadows)
This page shows proof of failure to reach infinity ("INF") focus using Fujifilm GFX100S/GFX100 Focus BKT feature.
See also: Fujifilm: Focus BKT is Blurry for last frame (INF focus) — Please Fix ASAP — You’ve Had FIVE YEARS
This example is the same kind of failure seen 4 years earlier with the Fujifilm GFX100. It seems to affect medium and long focal lengths the most, usually succeeding with shorter focal lengths.
Here in 2023, Fujifilm has clearly not made Focus BKT a reliable feature. We are stuck with problems that I first reported upon back in 2019 with the GFX100.
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.
Fujifilm GFX100S + Fujifilm GF 35-70mm f/4.5-5.6 WR @ 55.6mm equiv (67.6mm) + polarizer Breakthrough Photography X4
ENV: Leavitt Meadows overlook, altitude 7200 ft / 2195 m, 75°F / 23°C
RAW: vignetting corrected, WB 5500°K tint 30, pull 0.35 stops, +100 Shadows, -70 Highlights, +20 Whites, +30 Dehaze, +10 Clarity, diffraction mitigating sharpening
[low-res image for bot]