ON TRIAL FUJINON
There really is no more definitive statement of intent than the addition of a tilt/shift lens to a camera system… and Fujifilm has now introduced two and to its medium format mirrorless system no less. As it happens, the G mount mirrorless system is the first of any format to have native tilt/shift lenses. Canon continues to offer an impressive five TS-E models in the EF SLR/DSLR mount which, of course, you can use on an EOS R mirrorless body via an adapter, as is the case with Nikon's three PC-E F mount models. It's not a significant drawback except that there's the extra cost of the adapter and the general clunkiness of two couplings versus the straight fitting of the Fujinon GF 110mm f/5.6 T/S Macro or the GF 30mm f/5.6 T/S to any GFX series body.
Tilt/shift lenses came about as a way of adding view camera movements to rigidbodied cameras. Being able to tilt, swing and shift – either left/right or up/down (a.k.a. rise/fall) – a view camera's lens board (along with the film holder or rear standard) enables perspective control and sharpness control respectively, the latter independent of the lens focal length, shooting aperture or focusing distance. It was logical that the next step down from large format cameras – the medium format rollfilm camera systems
