I had anticipated that it would be a major advancement over FX Nikon and Canon, but the fact is in real-life, real-world people photography at normal distances and normal f/stops, there's a lack of DOF on many shots that would make this a less-than-ideal camera for many social photography situations or commerical-type illustrations. I'm not talking about blowing out backgrounds like a 300/2.8 will, but simply the problems of not having enough DOF to do a group shot two-deep, or to do a small-product shot from 6,7,8,9 feet on a tabletop. At closer, social photography and commercial people type ranges, the DOF per picture angle is so far from the hyperfocal distance that getting even a 1-foot DOF band seems impossible.
I've seen so many GFX portraits of half-body people where there's only one eye in-focus...bridal floral arrangements where only four inches are in-focus at f/8...unlike APS-C format where the lenses used approach the hyperfocal distance at normal ranges, this is a bigger format, so the inside-15-foot range means there's NOT much DOF to position. I saw a single men's shoe shot done at f/16...like the pro who shot is said, "Insufficient DOF...demands a tilt/shift adapter for product work". SAME image with APS-C, no sweat, boom! With an iPhone, same image, huge DOF available.
I honestly see this as the wrong format for many types of social/people work in daylight. The APS-C size sensor and its various lens lengths make a lot of sense for documentary/social/close-up/reportage types of work. There is a range of distances where the APS-C rapidly format builds usable depth of field beyond 10 feet or so: this 44x33 format does not do that until much farther distances. DOF has the macro range properties (weird and unusual), close-up range properties, intermediate-distance properties, and long-distance shooting properties. The problem that I see is that this format size, and the lenses used for each picture angle of view, are long enough that the close-up and intermediate DOF behaviors are just not quite right for "social/reportage" and are also bad for "close-in" or table-top commerical product work, unless a tilt lens is available to get sufficient DOF... Focus-stacking everything inside of 5 feet is gonna be a huge PITA.
Put it this way: inside of 12 feet, APS-C is a great format, FX less so, and 44x33 is even less ideal. Unless you like that one-eye in-focus, the other out of focus look. The problem I see is that the young, 20-something reviewers want to focus on how SHALLOW a DOF they can get, in that uselsss 300/2.8 blown-out way, but other people are concerned that this format size makes even f/16 insufficient to pull focus for a simple product shot done inside of 10 feet.
Thank goodnes the $1,900 Canon tilt/shift lens exists.
Canon TS-E 24mm f/3.5L II Tilt-Shift Lens 3552B002 B&H Photo And the 45mm tilt/shift as well! And the 90mm TS too!