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Fujifilm GFX + 120mm f/4 Macro: Focus Shift Summarized with Two Additional Proofs

See my Fujifilm GFX wish list.

A few days ago I reported an a stupefying focus shift problem with the Fujifilm GF 120mm f/4 Macro R LM OIS WR. I have now summarized my thoughts on the behavior:

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

Although I observed exactly the same behavior in other series that same day as with the Baseball Diamond fiasco, I elected to confirm it with two other subjects on a subsequent day. In my review of the Fujifilm GFX system in Medium Format I’ve added two new studies (first two listed) which all confirm each other irrefutably:

Fujifilm GF 120mm f/4 Macro Aperture Series: Rodin Burghers of Calais

Fujifilm GF 120mm f/4 Macro Aperture Series: Mosaic

Fujifilm GF 120mm f/4 Macro Aperture Series: Baseball Diamond

Fujifilm GF 120mm f/4 Macro Aperture Series @ 1:10: Dolls

I am not happy to see the launch of a new system tainted by what I deem a non-starter, but there you have it. There is some slim hope that this is a camera issue (see my discussion), but that faint hope must wait until I receive a replacement GFX and a replacement 120mm f/4. Along with what I consider serious operational problems and a host of other irritations, I feel disappointed.

Update 28 March: I have reproduced the behavior with a brand new 120mm f/4 and a brand new GFX. This disproves any “bad sample” theory. I suspect an electronic glitch bug between camera and lens, though its impossible to say. I cannot say if this is only an issue with the 120mm, or a general one, though based on some other unexplained behavior I suspect that it is a general one that may manifest more subtly with other lenses. And/or not manifest if used in one-off-single-shot point and shoot mode. The GFX has some kind of focus stability problem across multiple shots; it might not apply to single-shot usage.

“I’ll shoot myself avant que j'arrive a Calais if the focus is off une foi plus... merde!”
f4 @ 0.3 sec, ISO 100; 2017-03-09 18:02:58
GFX 50S + Fujifilm GF 120mm f/4 Macro R LM OIS WR @ 98.7mm equiv (120mm)

[low-res image for bot]
Can’t love focus results based on faith or hope, that’s as charitable as can be said
f4 @ 1/25 sec, ISO 100; 2017-03-09 17:46:58
GFX 50S + Fujifilm GF 120mm f/4 Macro R LM OIS WR @ 98.7mm equiv (120mm)

[low-res image for bot]

CLICK TO VIEW: Fujifilm GFX System

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