This is the seventh post in a series of tests of the Fujifilm 32-64 mm f/4 lens on the Fuji GFX 50S. The test starts here. It occurs to me that I neglected to do the distortion testing for the Fuji 32-64 mm f/4 zoom on the Fuji GFX 50S. Let me rectify that omission…. [Read More]

This is a continuation of the development of a simple, relatively foolproof, astigmatism, field curvature, and field tilt test for lens screening. The first post is here. The fine Siemens Stars I used in the last post were OK, but the coarse ones were too coarse. I made binary and sinusoidal stars with 40, 60, and… [Read More]

This is the 73rd in a series of posts on the Fujifilm GFX-50S. The series starts here.  Someone asked me to do a test of focus shift with the Fuji 63 mm f/2.8 lens on the GFX 50S with the camera in a vertical position, so that gravity was having the greatest possible effect on… [Read More]

This is the 72nd in a series of posts on the Fujifilm GFX-50S. The series starts here.  I’ve tested the Fuji 110 mm f/2 G lens and the 120 mm f/4 G macro lens on the GFX before. They are both great lenses. I’ve had several requests to test them head-to-head for a distant subject…. [Read More]

Fuji came out with a new firmware image for the GFX. I downloaded it. But I had to disable the gateway antivirus in my firewall first, because it didn’t like the Fuji file: [Added 8/10/17: The above is a screen grab of a portion of the log file of my firewall immediately after the download… [Read More]