When the Sony a9 arrives — soon, I hope — I will jump off into another weeks-long, geeky, mathematical analysis. Hey, that’s what I do, right? But I try to put that kind of thing in perspective for myself, and occasionally for you, dear readers. Here’s what I wrote on someone else’s blog a few… [Read More]
Archives for 2017
Leica WATE & 18 mm SE on Fujifilm GFX 50S
This is the 59th in a series of posts on the Fujifilm GFX-50S. The series starts here. In the last post, I showed the results of some informal testing with the Leica 16-18-21 mm f/4 Tri-Elmar-M ASPH on the Fuji GFX. Now I’ll show you how that lens does at 18 mm. For comparison, I’ll… [Read More]
Leica WATE on Fujifilm GFX 50S @ 16 & 21 mm
This is the 58th in a series of posts on the Fujifilm GFX-50S. The series starts here. A reader asked me to test a couple of Leica M-mount wide lenses on the GFX. I didn’t have very high hopes, which is why I haven’t tried them up to now, but I decided to start with… [Read More]
OOF PSFs with the Lomography 58/1.9 Petzval lens
This is the eighth in a series of posts that started out to be about building a bokeh simulator, and is now morphing into a broader discussion of bokeh. This series starts here. Earlier, I posted 35 out of focus (OOF) point spread functions (PSFs) for the Sony 135 mm f/2.8 STF lens mapped onto a… [Read More]
Really long adapted lenses on the Fujifilm GFX 50S
This is the 58th in a series of posts on the Fujifilm GFX-50S. The series starts here. I’ve tested the Leica 280/4 R-mount tele and the 250/5.6 Superachromat on the GFX, and both did well in different ways. I have several longer full frame lenses that might perform credibly — or might not, due to… [Read More]
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