This is the 26th post in a series of Nikon D850 tests. The series starts here. I’ve just purchased a bunch of Sigma lenses, thanks to the D850. Why’s that? It’s a somewhat-complicated chain of reasoning: Because the D850’s Focus Shift Shooting (FSS) feature as the potential to completely change the way I work with static… [Read More]
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Nikon 200/2 VRI LoCA
This is the 23rd post in a series of Nikon D850 tests. The series starts here. I’m going to be doing some autofocus and vibration testing using the D850 and the Nikon 200 mm f/2 G VR lens. It’s the first generation VR lens, not the current one, but it’s still pretty sharp. In order to… [Read More]
Nikon 58/1.4 on D850, LoCA and CDAF
This is the 14th post in a series of Nikon D850 tests. The series starts here. I dedicated to try another lens than the 105/1.4 on the D850 and see if the autofocus (AF) behavior changed. I chose the 58 mm f/1.4. I first ran a set of runs using the Focus Shift Shooting feature of… [Read More]
Nikon 105/1.4 on D850 — LoCA & focus shift
This is the seventh post in a series of Nikon D850 tests. The series starts here. Actually, this isn’t really a D850 test. It’s a test of a Nikon 105 mm f/1.4 lens that happens to be mounted to a D850. The performance of the combination is what I’m testing. We saw some anomalies in the D850… [Read More]
Voigtlander 65/2 Apo Lanthar 1:2 LoCA & focus shift
This is the seventh in a series of posts about the Voigtlander 65 mm f/2 Apo-Lanthar macro lens. The series starts here. I’ve been asked about the Voigtlander 65 mm f/2 Apo-Lanthar’s longitudinal chromatic aberration (LoCA) and focus shift at 1:2 reproduction ratio. I made a series of exposures at each whole f-stop from f/2 through… [Read More]
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