Chinese company SG-image has announced a new 75mm f/1.2 manual-focus lens designed for medium-format mirrorless cameras, with versions planned for Fujifilm GFX and Hasselblad XCD mounts. The lens represents a relatively uncommon specification in this segment, as ultra-fast apertures remain rare in medium format outside of first-party optics.

Mounted on Fujifilm GFX or Hasselblad X-system bodies, the 75mm focal length corresponds to an angle of view similar to a 60mm lens on full-frame cameras, placing it between traditional standard and short-telephoto perspectives. SG-image also notes that the f/1.2 aperture on a medium-format sensor produces a depth-of-field effect comparable to approximately f/0.95 on full frame, emphasizing subject isolation rather than edge-to-edge sharpness.

The lens is fully manual, with no electronic contacts for autofocus or aperture control. An aperture ring near the front of the barrel covers a range from f/1.2 to f/16, and the focus ring appears to have a long throw intended to allow precise adjustments, particularly important given the shallow depth of field at wide apertures. Construction is entirely metal, and the lens weighs approximately 642 grams. The minimum focusing distance is specified at 0.6 meters, and the front accepts 72mm filters.

Optically, available specifications indicate a design consisting of seven elements arranged in six groups, paired with a 12-blade diaphragm. SG-image has not positioned the lens as a high-resolution benchmark, and early technical data suggest that sharpness is moderate wide open, especially toward the edges, with noticeable astigmatism and some longitudinal chromatic aberration.

Here are some sample pictures, courtesy of SG-image: