Fujifilm's unusual soft-focus lens — 85mm f/4 M42 mount for deliberate soft-focus portrait effects.
The Fujifilm 85mm f/4 Soft Focus is a dedicated soft-focus portrait prime from Fujifilm (Fujinon) in the M42 screw mount. A specialty lens producing deliberate soft-focus effect via controlled spherical aberration at wider apertures. M42 mount.
f/4 maximum aperture. 85mm focal length (full-frame). Soft focus effect (controlled spherical aberration — strongest at wide apertures, reduces when stopped down). Manual focus. M42 (42mm × 1mm screw thread) mount.
Soft focus lenses use intentional spherical aberration to produce a portrait 'glow' or dreamy effect. At f/4 the effect is most pronounced; closing to f/8 or beyond significantly reduces it, approaching standard rendering. Fujinon soft-focus optics were part of Fujifilm's professional photographic product line. M42 mount enables adaptation to most modern mirrorless cameras via standard M42 adapters.
On the used market the Fujifilm 85mm f/4 Soft Focus M42 is a specialty portrait soft-focus prime. Condition checks: front element condition (soft focus coatings can be delicate), aperture blade condition, focus ring damping. M42 mount — adapts to most modern mirrorless cameras.