Fujifilm G Lenses
17 interactive lens diagrams
Fujifilm GFX medium-format mirrorless mount, introduced in 2017 | 43.8 x 32.9 mm digital medium format
Fujifilm G mount serves the GFX system and its 43.8 x 32.9 mm digital medium-format sensor class. The mount pairs a short mirrorless register with a large image circle, allowing lenses that cover more field than full-frame designs while avoiding the long body depth of medium-format SLR systems. Unlike many older medium-format systems, GFX is digital-first rather than an adaptation of a roll-film mount.
GF lenses tend to prioritize high resolution, low field curvature, and controlled chromatic aberration across a large sensor. Even moderate apertures can produce shallow depth of field in this format, so many formulas trade absolute compactness for image uniformity and stable performance at high pixel counts. The system also leans on focal-plane-shutter camera bodies rather than putting leaf shutters into the normal native lens workflow, which distinguishes it from Hasselblad H or XCD handling.
The designs in this cluster are useful comparisons against full-frame mirrorless lenses because they show how optical layouts scale when the image circle grows but mirrorless back-focus freedom remains. They also help separate medium-format rendering choices from purely historical medium-format SLR constraints.
Mount interface
Flange focal distance 26.7 mm, bayonet mount. 0° at 12 o'clock from the camera front; the lens-side view is the horizontal mirror. Dotted strokes mark photo-scaled or schematic (not-to-scale) dimensions.