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Sony G Master 85mm f/1.4 Aperture Series: Understanding Behavior, Particularly Focus Shift

Sony 85mm f/1.4 GM

Get Sony G Master Lens and Zeiss Batis at B&H Photo.

I now understand my perplexity and frustration in not being able to match the two Sony 85/1.4 GM to the Batis 85mm f/1.8.

It turns out that the Sony 85mm f/1.4 GM has a pronounced focus shift in outer zones.

Sony 85mm f/1.4 GM Aperture Series: Dolls

Images up to 24 megapixels with large crops, all from f/1.4 - f/8.

I shot the scene about ten times to get an optimal result for the Sony 85/1.4 GM. Tedious to be sure, but I now understand exactly what the Sony 85/1.4 GM is doing, and I show/explain it.

This may be an important read for anyone using this lens and wanting to get the best out of it.

Includes a 2nd series at MOD (minimum object distance), which I shot to confirm the findings.

f4 @ 1/5 sec, ISO 100; 2016-04-16 13:09:43
Sony A7R II + Sony FE 85mm f/1.4 GM

[low-res image for bot]
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