Leica L-Mount

Leica L-Mount
Logo of the L-mount alliance
TypeBayonet, digital interface
Inner diameter51.6 mm
Tabs4
Flange20 mm
Connectors10 electrical pins

The Leica L-Mount is a bayonet mount developed by Leica Camera AG for interchangeable-lens autofocus digital cameras.

The L-Mount has an inner diameter of 51.6 mm[1] and a flange depth of 20.0 mm.[2] The L-mount exists in two versions, an APS-C version (TL) and a full-frame version (SL). The two versions are mechanically and electronically compatible. TL lenses mounted on full-frame cameras will cause the camera to use a crop mode from the center of the sensor, corresponding to the APS-C coverage of the lens. SL lenses mounted on TL cameras function normally, providing a 1.5x crop field of view, as is typical with APS-C cameras.

In 2018 Leica formed the L-Mount Alliance, licensing Sigma, Panasonic in the same year, to use an upgraded version of the mount for their own products, opening the way for a more extensive system of fully compatible cameras and lenses.[3]

Ernst Leitz Wetzlar GmbH, the cine lens business of Leica, joined the L-Mount Alliance in 2021,[4] DJI followed in 2022,[5] Samyang, Astrodesign[6] and Blackmagic Design in 2023.[7]

  1. ^ "L-Mount | Questions and Answers".
  2. ^ Leica SL Details. Manufacturer's website. Visited 2 June 2017.
  3. ^ Etchells, Dave (2 October 2018). "Sigma interview at Photokina 2018: CEO Kazuto Yamaki gives us a peek inside the L-mount alliance". Imaging Resource. Retrieved 7 October 2018.
  4. ^ "ERNST LEITZ WETZLAR JOINS THE L-MOUNT ALLIANCE".
  5. ^ "DJI joins the L-Mount Alliance | Leica Camera CH".
  6. ^ "L-mount expansion: Samyang and Astrodesign join the L-Mount Alliance".
  7. ^ "Blackmagic Design Joins the L-Mount Alliance". 15 September 2023.