This is the fourth post in a series of tests of the Fujifilm 32-64 mm f/4 lens on the Fuji GFX 50S. The test starts here. The data in the previous post can be reworked to show focus shift as the lens is stopped down: At 64 mm, the focus shift is moderately low. Except… [Read More]
Archives for August 6, 2017
Fuji 32-64/4 LoCA
This is the third post in a series of tests of the Fujifilm 32-64 mm f/4 lens on the Fuji GFX 50S. The test starts here. In order to test on-axis longitudinal chromatic aberration (LoCA), I use computer controlled focusing rail and a razor blade target. A quick review of the test protocol: Fuji GFX 50S… [Read More]