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Sony A7R III Pixel Shift: Examples of Checkerboarding Defects and a Puzzling (and Disturbing) Finding About Pixel Shift

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This page shows the defect of “checkerboarding” which occurs with any movement of the subject matter (or camera/sensor) in pixel shift mode. It can also be caused by a change in lighting.

DNG files incorporating all 4 pixel shift frames were generated using LibRaw SonyPixelShift2DNG.

Sony A7R III Pixel Shift: Checkerboarding Examples

Includes large crops and 2X crops to clearly show the issue, both for checkerboarding caused by motion and a mystery case that occurs in the periphery but not the center.

The open question is whether pixel shift is practical in any outdoor setting, or whether the defects shown are related somehow to the lens. If a general camera issue, it pretty much kills the whole feature.

Below, checkerboarding overlaying the image in all outer zones, but not in central areas—a mystery.

f8 @ 1/40 sec PixelShift, ISO 100; 2018-01-20 08:59:12
Sony A7R III + Sony FE 24-105mm F4 G OSS @ 105mm

[low-res image for bot]
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