I ran Roger Cicala’s Q&D field curvature test on the 20-35 GF. Sides focus closer than they should at all focal lengths. More severe as the focal length gets longer.
FujiFilm 20-35mm f/4 GF on GFX 100S — screening
I received the new Fuji 20-35mm f/4 GF zoom today. I immediately tested it with my lens screening test. Developed in Lr CC. White balanced to gray background in center shot. Sharpening 20, radius 1, detail 25. A bit of a contrast boost — it is a low contrast target. f/4. Corner falloff is not… [Read More]
Effect of camera resolution on small prints
There was recently a question thrown out on a public forum that I’ll paraphrase and make more specific here: “How big do you have to print before you can see the difference between the GFX 50x and GFX 100x cameras?” My answer: The pixel aperture of the GFX 100x and GFX 50x is the same… [Read More]
Fuji 35-70 GF transfocal bokeh
There are two important aspects to bokeh. It seems most people, when they hear the word, think immediately of the look of parts of the scene that are for out of focus. That’s a good thing to think about when buying, selecting, or using a lens, but the, ahem, focus, of today’s post is going… [Read More]
Field curvature in the Fuji GF 35-70, part 2
In a previous post, I tested the field curvature of the Fuji 35-70 GF using Roger Cicala’s quick and dirty method. A reader said he was having difficulty with what appeared to be field curvature in the corners. That gave me an idea for a modifications of Roger’s test. I rolled the camera so that… [Read More]
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