EXCERPT page containing first few paragraphs. 2024-04-25 09:33:50
UA_SEARCH_BOT_compatible_botmozilla/5.0 applewebkit/537.36 (khtml, like gecko; compatible; claudebot/1.0; +claudebot@anthropic.com) @ 3.141.202.54
For full access, subscribe here. Or click title to login. 
Examples: Early Morning Ad-Hoc, Backyard
These images shot handheld with IBIS using small-spot AF in order to evaluate general lens performance.
Sunrise over Frosty Backyard @ 20mm
The zone of sharpness shows strong near-far depth but covers only about the central 2/3 of the frame. Scanning across the frame at any distance, it can be seen that sharpness rapidly falls off towards the edges. There is nowhere at left or right at any distance where sharpness can come close to competing with central sharpness.
Further, real depth of field is much greater in the central 1/2 of the frame than in the outer zones, which “thin out” in sharpness. This is readily seen by examining the immediate foreground all the way to the large oak tree.
If there is a rearward field curvature involved, it is not obvious to me here; I would expect those redwood trees at far right to be tack sharp.
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 + GF20-35mmF4 R WR @ 16.5mm equiv (20mm)
ENV: 34°F / 1°C
RAW: Camera ASTIA, LACA corrected, vignetting corrected, +10 Whites, +10 Clarity, diffraction mitigating sharpening
[low-res image for bot]