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Sony 16-35mm f/2.8 GM Aperture Series @ 35mm: Mosaic (Sony A7R IV)

This series evaluates the Sony FE 16-35mm f/2.8 GM from f/2.8 through f/8 on an extremely demanding target: a planar subject with exceedingly fine detail. This target is among the most demanding any lens can face, mercilessly showing most all lens weaknesses.

  
Sony 16-35mm f/2.8 GM

Of keen interest here is lens symmetry, which is relatively challenging on a 60MP sensor, which mercilessly shows the slightest flaw. For this sample of the Sony FE 16-35mm f/2.8 GM, the lens skew is so awful that f/8 won’t overcome it, and yet it performs reasonably well at 18mm.

Sony 16-35mm f/2.8 GM Aperture Series @ 35mm (Sony A7R IV)

Includes images from f/2.8 to f/8 at up to full camera resolution.

Sadly, this is an excellent example of some of the worst quality control you might find. Sources tell me this is quite common for Sony lenses.

I also find pincushion distortion just unacceptable at 35mm, wether it be a horizon, a building, or a human face in a portrait. Distortion correction for pincushion distortion guarantees further loss of fine detail, because pixels must be stretched apart. Such distortion is typical for a 16-35mm zoom, so it’s not a zoom range I tend to like.

CLICK TO VIEW: 35mm Options for Sony Mirrorless

f5.6 @ 1/60 sec pixel shift, ISO 100; 2019-09-14 18:39:26
Sony A7R IV + Sony FE 16-35mm f/2.8 GM @ 35mm
RAW: LACA corrected, vignetting corrected, +30 Shadows

[low-res image for bot]
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