Zeiss's fast M-mount 50mm — Sonnar f/1.5 for Leica rangefinders with T* coating.
The Zeiss C Sonnar T* 50mm f/1.5 ZM is a fast normal prime for Leica M-mount using the classic Sonnar optical formula. The Sonnar provides a distinctive rendering character — different from the Planar formula — with T* coating for flare control.
Optically distinctive — the Sonnar formula provides a different rendering character than Planar designs. Sharp from f/2.8 with smooth focus transition. The f/1.5 provides useful speed for low light. T* multi-coating. Rangefinder coupled.
Leica M mount with 46mm filter thread. Compact and lightweight. Rangefinder coupled. T* coating. All-metal construction. 10 aperture blades for smooth bokeh. The ZM designation indicates Zeiss M-mount.
Available used at mid-range to professional prices. The Sonnar character is different from the Zeiss Planar ZM 50mm — more compact but with different bokeh quality. For M-mount photographers wanting fast 50mm with Sonnar character.