This is a continuation of my testing of the two new 20 mm f/1.8 lenses from Sony and Nikon. These fit E-mount and Z-mount cameras respectively, and are part of a push by Nikon for a big place in the full frame mirrorless camera (MILC) market, and a defense by Sony of its historical dominance… [Read More]
Focus curvature with the 20mm f/1.8 Nikkor S
I used the quick-and dirty focus curvature test (Photoshop > Filter > Stylize > Find Edges) on a picture of my driveway with the 20 mm f/1.8 Nikkor S wide open on a Z7. There is some focus curvature, with the focal plane bending toward the camera as you get further off axis. The Sony… [Read More]
20mm f/1.8 Nikkor S initial testing
It is a rare occurrence that two rival camera manufacturers aiming for the top of one market (in this case full frame MILCs) introduce two lenses of the same focal length and aperture simultaneously. Yet that is what has just happened with the Sony 20 mm f/1.8 G E-mount lens and the Nikon 20mm f/1.8… [Read More]
Camera differences in Adobe Color Profile
In the last post, I showed that, at least in the default general-purpose settings, Lumiriver Profile Designer did not do a particularly good job of producing the same color from raw files from three different cameras, even though with the reproduction defaults (except for 2.5 dimension LUTs) it did pretty well with at least one… [Read More]
Calibrating out the camera when making color profiles
In this test and this one, I showed that you could get the colors of developed files from the Sony a7RIV, the Nikon Z7, and the Fujifilm GFX 100 reasonably close if you used Lumariver Profile Designer, and the reproduction style. The a7RIV and the Z7 were remarkably statistically accurate and even closer to each… [Read More]
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