Zeiss ultra-wide at 18mm for M mount with T* coating, premium 100-degree rectilinear perspective for rangefinder cameras.
The Zeiss 18mm f/4 ZM is an ultra-wide prime for the Leica M mount from Zeiss's ZM range. ZM = Zeiss M-mount, designed to the Leica M bayonet specification and rangefinder-coupled for Leica M cameras. T* anti-reflection coating. Leica M mount.
f/4 maximum aperture. 18mm focal length (full-frame ultra-wide). T* coating. Rangefinder-coupled. ZM (Zeiss M-mount = Leica M bayonet). Manual focus. At approximately 200g. Leica M mount.
The Zeiss 18mm f/4 ZM is an extreme ultra-wide for the Leica M system — 18mm on full frame covers a very wide field of view. The ZM designation confirms Leica M bayonet compatibility and rangefinder coupling. T* coating reduces flare at this wide angle.
On the used market the Zeiss 18mm f/4 ZM is a rare ultra-wide for Leica M. Condition checks: front element (very exposed), rangefinder coupling. Leica M mount — ZM series.