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EXCERPT page containing first few paragraphs. 2018-05-23 05:57:33

Fujifilm GF 120mm f/4 Macro R LM OIS WR

Focus Shift Behavior of Fujifilm GFX + GF 120mm f/4 Macro

UPDATE 28 March 2017: the Baseball Diamond series was re-shot with another brand-new GFX and brand-new 120/4 and showed the same behavior.A camera + lens glitch seems likely. Hence the results here are not likely to change with another lens or camera sample—not until some firmware fix is made.

The Fujifilm GFX with the 120mm f/4 appears to suffer from damaging focus shift. See these three published series documenting the damage:; every other field series taken shows the same problem:

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