See my Fujifilm GFX wish list.
Dave W writes with questions related to aspect ratios:
Like many, I'm very interested in the new mirrorless medium format cameras by Fuji and Hasselblad. Providing they are as good of a system we all hope they will be, there is one feature that I'm most curious about.
Could you please shoot examples and discuss the various formats that each camera can offer? How many MP in each format? What focal length does each lens turn into on each format? How good of an image will these systems produce in 6x17 format?
Will they capture and print an image as good as the Fuji or Linhof 6x17 film cameras? I don't stitch, but have always wanted to capture panoramic images on location in one shot.
In my review of the Fujifilm GFX, I share my thoughts on shooting with the different built-in aspect ratios.
Worth noting is that I think I can make a better and far more flexible panoramic image with an iPhone 7s in pano mode than my Linhof Technorama 617s III could, at least under lighting the allows me to handhold it.
Diagram below derived from the Fujifilm GFX pdf.