There was a thread recently that asked about uses for 135mm focal length lenses on full frame cameras. I suggested landscapes. That got me thinking. I know that conventional wisdom is that short lenses are appropriate for landscapes. I did a study of the focal lengths that Ansel Adams used for some of his most… [Read More]
Archives for July 2017
Fuji 23/4 AF performance on GFX — high contrast inkjet target
This is the 68th in a series of posts on the Fujifilm GFX-50S. The series starts here. In these tests, I found that the AF consistency and accuracy with a low-contrast target was good, but not great. I decided to resun the tests with a higher-contrast inkjet-printed target. The specifics: ISO 100 AF-S Higer… [Read More]
Fuji 120/4 AF performance on GFX 50S revisited
This is the 67th in a series of posts on the Fujifilm GFX-50S. The series starts here. I reported here on some inaccurate and inconsistent behavior with the Fuji GFX 50S and the 120 mm f/4 macro lens at some apertures. Yesterday, using a different test protocol on the 110 mm f/2 lens, I found… [Read More]
Fuji 110/2 AF performance on GFX 50S
This is the 66th in a series of posts on the Fujifilm GFX-50S. The series starts here. In this post, I reported on Fuji GFX 50S systematic autofocus errors at certain f-stops (mostly one, actually) using the 23 mm f/4 lens. I have seen similar behavior with the 63 and 120 macro. When I made… [Read More]
Fuji 110/2 on GFX, Otus 85/1.4 on a7RII
This is the 65th in a series of posts on the Fujifilm GFX-50S. The series starts here. We saw in the previous post that the Fuji 110 mm f/2 lens on the GFX 50S is very sharp on axis — much sharper than the Otus 85 mm f/1.4 on the a7RII — and has very… [Read More]
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