the last word

This is the fifth post in a series of tests of the Fujifilm 32-64 mm f/4 lens on the Fuji GFX 50S. The test starts here. There are two pieces to bokeh. The first is what things look like when they are well out of focus (OOF), and the second is how the transition from… [Read More]

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]

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]

Frequent readers of this blog have watched me try to get a handle on what’s going on with the microlenses in the Fujifilm GFX 50S. Jack Hogan took a crack at it earlier in the summer, but his business required his attention. Brandon Dube volunteered, and it looks like he has pretty much figured it… [Read More]