A reader suggested that the disappointing showing of the PC-E 24mm f/3.5 Nikkor D ED might have been caused by field curvature. In order to check that out, I made an aperture series focusing in the upper right corner. The scene: The upper right corner, blown up 3:1: Looks a lot better, doesn’t it? Now… [Read More]

This is a continuation of the lens test of the previous post. The lenses are: Sigma 24mm f/1.4 DG Art AF-S Nikkor 24mm f/1.4 G ED AF-S Nikkor 24-70mm f/2.8 G ED PC-E Nikkor 24mm f/3.5 D ED Today we test all four lenses at f/8 and f/11. In the center: Yawn… In the corner:… [Read More]

This is a continuation of the lens test of the previous post. The lenses are: Sigma 24mm f/1.4 DG Art AF-S Nikkor 24mm f/1.4 G ED AF-S Nikkor 24-70mm f/2.8 G ED PC-E Nikkor 24mm f/3.5 D ED Today we test all four lenses at f/4 and f/5.6. The center, at f/4: I’m amazed at… [Read More]

The new Sigma 24mm f/1.4 Art lens is getting a lot of good press these days, and I thought it might be instructive to do one of my informal tests that included it. I rounded up the following 24mm lenses: Sigma 24mm f/1.4 DG Art AF-S Nikkor 24mm f/1.4 G ED AF-S Nikkor 24-70mm f/2.8… [Read More]

For the past few days, I’ve been doing tests of image sharpness with the Sony 70-200 f/4 OSS FE lens mounted on a Sony a7R and a a7II camera. I’ve been using a really sturdy tripod — the RRS TVC-43 — and head — the Arca Swiss C1 Cube — for the testing when I’ve… [Read More]