I keep being asked which Fuji G lenses hotspot and which don’t. I tested on a GFX 50R modified by LifePixel to respond to wavelengths longer than 720 nm. Here’s a table I made from the results: OK means no hotspotting, or very little. H means hotspotting that I consider to be unacceptable. I threw… [Read More]
GFX Natural Live View and raw file histograms
I received a request investigate whether the histogram in the GFX cameras when the display mode is set to “Natural Live View” faithfully represented the raw histogram. Spoiler alert. It does not, at least in all circumstances. I’d never paid any attention to that mode before. I looked it up in the GFX 100S searchable… [Read More]
Leica 90/2 Apo-Summicron ASPH-M on GFX 50S
The M-mount Leica 90 mm f/2 Apo-Summicron is a special lens. Almost as expensive as the Otus 85/1.4, it doesn’t quite measure up to the Zeiss lens in the standard lens quality metrics. But in spite of — probably because of — its optical deficiencies, it does a superb job of rendering some things. In… [Read More]
Leica 280/4 Apo-Telyt R at 950 nm on GFX 50R
I tested my LifePixel-modified (720 nm option) Fujifilm GFX 50R with the Leica 280 mm f/4 Apo-Telyt R lens and a 950 nm lowpass filter. I added a +100 contrast boost in Lightroom. Poor coverage, no hotspots. Still has corner vignetting. No hotspots. A little bit of corner vignetting. No hotspots. No corner vignetting. No… [Read More]
Fujifilm 250/4 in 830 nm infrared on GFX 50R
I put a B+W 830 nm lowpass filter on my LifePixel-modified (720 nm option) GFX 50R and checked for hot spots on distant scenery with a +100 contrast boost. Well, that’s encouraging. How about with the Fujifilm 1.4x telextender? Not good at all. Hotspots at every… [Read More]
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