the last word

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]

Two days ago, I posted data for the Sony a7R and a7II paired with the Sony 70-200mm f/4 OSS FE lens. I did tests on a tripod and handheld, and with and without image stabilization. Slicing and dicing the data another way, we can see when the a7R shutter shock degrades sharpness to a7II levels,… [Read More]