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Fujifilm GFX 50S: Reader Comments/Questions

Get Hasselblad X1D and Fujifilm GFX at B&H Photo.

I’ll post an update when B&H has a price for the GFX—thank you for ordering using my links at B&H when buying—NOT email notification from B&H—so I get credit.

See yesterday’s posts Thoughts on the Fujifilm GFX 50S and Fujifilm GFX 50S Disrupts the Medium Format (and 35mm) Marketplace.

Michael Erlewine writes:

Excuse my ignorance, but will this new camera take Nikon-mount lenses?

DIGLLOYD: potentially, once lens adapters exist. The flange focal distance between the Fujifilm GFX and Nikon F lenses is:

46.5 - 26.7 = 19.8mm

In other words, a lens adapter has 19.8mm off width between lens and camera. This should be ample thought it won’t easily allow a tripod foot for big/heavy lenses.

Image circle on some lenses is big enough to deliver beyond between 35mm full frame, but with extreme corner vignetting (in most cases) on the larger GFX sensor. However, since macro lenses (some) might produce a much larger image circle at close range, macro work holds better potential, at least for lenses that don’t play focal-length-shortening tricks, e.g. the Zeiss Milvus 50/2M, Zeiss Milvus 100/2M and Zeiss Milvus 135/2 APO (goes to 1:4). Possibly the Otus lenses also project a larger image circle at MOD.

The Fujifilm GFX has a focal plane shutter (EFC shutter unknown as yet), so anything that can be attached can be shot. By comparison, the Hasselblad X1D has no focal plane shutter, relying entirely on the leaf shutters in the lenses, so it cannot do any DSLR or medium format lenses, excepting lenses with manual Copal shutters or similar, and it is unclear how to do such an exposure except in bulb mode or long exposure, even if the lens can be mounted (and ray angle issues are not a problem).

Roy P writes:

Does it look like a Leica S lens adapter could be built for the Fuji?!

DIGLLOYD: I’m unsure of the flange focal distance, but it surely is much greater than for Nikon, so there should be ample space to build an adapter, which would have to be electronic to be able to control aperture and/or CS lenses.

Knut writes:

I'm extremely excited about using the Otus lenses on the new Fujifilm GFX. The 1,4/ 85mm as well as the Zeiss 2,0/135 may well nearly cover 33x44mm.

There is no perceivable technical limitation for the Fuji (it will not work with the Hasselblad due to the lack of an in body shutter).

DIGLLOYD: extreme dark corners at infinity focus, but yes, they may fully cover the sensor approaching MOD (minimum object distance).

Glenn K writes:

While I share your excitement about this camera, I can't help but wonder if it will really produce images that are enough better than a FF Sony sensor behind Zeiss glass to justify a likely 2x price, particularly if Sony delivers a 50+ MP sensor with lossless compression. It will be interesting to see.

DIGLLOYD: I also wonder. There is a good chance that the Pentax K1 SuperRes pixel shift mode will outperform both the Hasselblad X1D and Fujifilm GFX (in the limited conditions in which SuperRes mode can be used). But outstanding lenses for the Pentax K1 are a serious handicap—there are none, barring conversion or certain discontinued Zeiss ones.

Compression: Sony has had lossless compression since October 2015. It doesn’t matter for much vs lossless, only in extreme conditions where Sony 11+7 lossy compression can’t handle the jump in value.

With Sony, the pixel quality is “cooked” — clearly pre-processed. As one example of evidence for this (aside from what my eyes tell me), Sony A7R II images cannot take anywhere near the sharpening of a D810 file without rapidly breaking down into an ugly mess. I think there is far more going on with image quality than compression or nominal bits per pixel or whatever.

With a little luck the Hasselblad X1D will show up in 10 days or so and I can see for myself in the field. Let’s just see what medium format mirrorless can deliver.

Michael Erlewine writes:

Any idea what size photosite are in the new Fujifilm GFX 50S sensor? Looks interesting. I am still getting the new X1D.

It looks like we will see a flurry of 50mpx sensors in the near future. If only Nikon would give me one, so I can use all my lenses.

I am willing to try the X1D, which I can always return. Right now, what I need is 50 Mpx and some stability. I returned the A7RII, the K1, and am selling off the Novoflex (poorly-designed) bellows, both the CASTBAL and the BALPRO. What were they thinking?

The Cambo Actus Miniv View Camera is great, and the Rollei X-Act 2 is huge, but works.

The inaction of CaNikon has forced me out of the mainstream and I find myself in a little eddy or sidebar to the industry, as mentioned, looking for a little stability and a chance to shoot some photos instead of endlessly testing these things out. Or is the whole industry imploding?

DIGLLOYD: the photosite size in the Hasselblad X1D and Fujifilm GFX are identical, about 5.3 microns. The fact that two new medium format mirrorless cameras says to me that the industry still sees there are risks worth taking. CaNikon are conservate committee-drive companies lacking entirely in leadership, hence kudos to Sigma. But the basic problem is that real innovation is happening in the 3rd-tier players (Pentax, Hasselblad, Fujifilm) while CaNikon explore dark recesses with their thumbs.

An interesting comment: “out of the mainstream”. The 35mm DSLR has absolutely come to a dead-end in innovation. Hence the interest in Sony mirrorless and medium format.

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