The Leica S mount is a lens mount designed for medium-format digital SLR cameras by Leica and introduced in 2008 with the S2 camera. It is a single-lens reflex mount with a 30×45mm medium format sensor (3:2 aspect ratio) and no film legacy. It is a bayonet mount with four tabs, a focal flange distance of 53mm and a throat diameter of 66.5mm.
There is an adapter, the Leica S-Adapter H, that allows mounting almost all the Hasselblad H-system lenses on S camera bodies while retaining all lens functions – autofocus, aperture and central shutter control. The same features – autofocus and aperture control – are available with Contax 645 AF lenses using the Leica S-Adapter C.
Compared to the usual 35mm format, the crop factor of S-mount lenses is 0.8×.
Leica discontinued the last S-mount camera in 2023. With no official updates and dubious rumors, the S system should be considered discontinued.
Jump to: Leica S lenses, Leica S CS lenses.
Leica S lenses
The TS-APO-Elmar-S lens is a Schneider-Kreuznach design, with 12mm of maximum shift and 8° of tilt in each direction. It is a manual-focus, manual-aperture lens. APO-Tele-Elmar-S 350mm F3.5 has been shown in promo images but was never released.
- Leica Super-Elmar-S 24mm F3.5 Asph. ~19mm-equivalent
- Leica Elmarit-S 30mm F2.8 Asph. ~24mm-equivalent
- Leica Vario-Elmar-S 30–90mm F3.5–5.6 Asph. ~24–70mm-equivalent
- Leica Summarit-S 35mm F2.5 Asph. ~28mm-equivalent
- Leica Elmarit-S 45mm F2.8 Asph. ~35mm-equivalent
- Leica Summarit-S 70mm F2.5 Asph. ~55mm-equivalent
- Leica Summicron-S 100mm F2 Asph. ~80mm-equivalent
- Leica APO-Macro-Summarit-S 120mm F2.5 ~100mm-equivalent
- Leica TS-APO-Elmar-S 120mm F5.6 Asph. ~100mm-equivalent, tilt-shift, manual focus lens
- Leica APO-Elmar-S 180mm F3.5 ~150mm-equivalent
- Leica APO-Tele-Elmar-S 350mm F3.5 280mm-equivalent, never released
Leica S CS lenses
CS lenses have a built-in central shutter – a leaf shutter unit.
- Leica Elmarit-S 30mm F2.8 Asph. CS ~24mm-equivalent
- Leica Summarit-S 35mm F2.5 Asph. CS ~28mm-equivalent
- Leica Elmarit-S 45mm F2.8 Asph. CS ~35mm-equivalent
- Leica Summarit-S 70mm F2.5 Asph. CS ~55mm-equivalent
- Leica APO-Macro-Summarit-S 120mm F2.5 CS ~100mm-equivalent
- Leica APO-Elmar-S 180mm F3.5 CS ~150mm-equivalent
References
- Leica S-Lenses on Leica Camera
- Leica S-System on Wikipedia
- Leica S system specifications on DPReview
- Leica S mount on LightPoint
Last update: 29. 11. 2025.