I made test shots of both the Macbeth Colorchecker 24-patch target (the CC24), and the Colorchecker SG 140-patch target (CCSG). I used the following setup: Sony a7RIV, Nikon Z7, Fujifilm GFX 100 Zony 55, Nikon 24-70/2.8 Z-mount lens, Fuji 120 mm f/4 macro Godox/Flashpoint AD600 Pro strobes, set to 1/64 power. 12-inch reflectors 45-degree strobe… [Read More]
Sony 20/1.8 vs Loxia 21/2.8 — Siemens Star
It’s natural to compare the new-kid-on-the-block Sony 20mm f/1.8 to the excellent Zeiss Loxia 21 mm f/2.8. Here’s a test with both lenses mounted on an a7RIV aimed at a low-contrast Siemens Star at about 8 meters, with the star in the center and the lower left corner. I used AF-S for the Sony, and… [Read More]
Sony 20mm f/1.8 G initial tests
I just received a copy of the new Sony 20 mm f/1.8 G lens. I’ve ordered the similar Nikkor S. I’ll be testing both of them, separately and together. FOr those of you who’ve been following the color profiling work, don’t worry; I’ll be doing both types of testing at the same time. Just don’t… [Read More]
Visuals of GFX 100 strobe profile differences
In the previous post, I discussed how I created some color profiles for the Fujifilm GFX 100 using strobe lighting and ColorChecker 24-patch (CC24) and 140-patch (CCSG) targets. I showed you numbers and graphs that analyzed the accuracy of each profile. In this post, I’ll show you some images. All come from the DPR Studio… [Read More]
Designing color profiles for strobe lighting
I haven’t posted in the last few days. That’s not because I was taking time off from photo tech. It’s because I’ve been beavering away on how to measure and design color profiles. I’ve built more than 50 of them, learned a lot, found a few dead ends, and am finally reading to report my… [Read More]
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