Gary Smith, the Gallery Director at Hartnell, just finished hanging the This Green Growing Land exhibition and made some photos of his handiwork. Thanks so much, Gary!
Fuji 32-64/4 distortion
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]
Fuji 110/2 on GFX, off-axis performance
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]
Leica 180/3.4 Apo-Telyt-R on Sony a9: field tilt, curvature, astigmatism
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. Bart van der Wolf recommended that I use a sinusoidal Siemens Star rather than the binary one. I wrote some Matlab code and made this: There is a fine… [Read More]
Sony 70-200/4@200mm on a9: tilt, field curvature, & astigmatism
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. I wanted to see what happened if I did my test with a lens that wasn’t particularly sharp on a camera with a lower=resolution sensor and and an anti-aliasing (AA)… [Read More]
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