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 and a flange depth of 20.0 mm.Leica SL Details. Manufacturer's website. Visited 2 June 2017. 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.
Ernst Leitz Wetzlar GmbH, the cine lens business of Leica, joined the L-Mount Alliance in 2021, DJI followed in 2022, Samyang, Astrodesign, Blackmagic Design in 2023, Sirui, Viltrox in 2025 and Freefly Systems in 2026.
T-Mount to L-Mount
It was introduced in April 2014 with the Leica T (Typ 701) camera. At the time of introduction, it was called the "T-mount", but this was changed to "L-mount" with the release of the Leica SL, a full-frame sensor camera using the same mount. The Leica T was renamed to the Leica TL at this time, to permit marketing clarity for the L-mount lens line: TL lenses would cover APS-C sensors, while SL lenses would cover full-frame sensors.
The mount is used by the Leica TL (discontinued), TL2, Leica CL (2017) and Leica SL systems. The L-Mount is a registered trademark of Leica Camera AG.
L-Mount Alliance
On 25 September 2018, Leica Camera AG, Panasonic and the Sigma Corporation launched together The L-Mount Alliance. This allowed Panasonic and Sigma to make use of the L-Mount standard initially developed by Leica, to offer cameras and lenses utilizing this lens mount with improved firmware and full compatibility among products of the alliance. On the same day, both Sigma and Panasonic announced new products compatible with the L-mount.
Sigma announced a full-frame L-mount camera using the company's unique Foveon X3 sensor technology. Sigma will initially release the same L-mount variants of existing lenses as they are producing for the.
Sigma announced that it would launch a full-frame camera in 2019, using the L-Mount and the company's Foveon X3 sensor. The also announced a range of L-mount variants of their existing Sony E-mount lenses, and lens adapters for existing Sigma SA-mount and Canon EF mount lenses. According to Sigma CEO, Kazuto Yamaki, the improved "L-mount system is not exactly the same as the existing one. We updated it a little bit to work better with such lenses through lens adapters."
Panasonic announced its S1R and S1 full-frame L-Mount cameras and three L-Mount lenses, with seven more lenses to be launched by 2020.
Six cameras and 39 native lenses have been announced for the L-Mount by 2020.
Expansion Next company to join the alliance was German cinema lens maker Ernst Leitz Wetzlar GmbH in 2021, later renamed Leitz Cine. It since has been followed by a number of other camera and lens manufacturers.
+L-Mount Alliance members and their products № Member Since Mainstreamcameras Lenses Specialized/cinemacameras and gimbals Drones 1 Leica 2 Panasonic 3 Sigma 4 Leitz Cine 5 DJI 6 Astrodesign 7 Samyang 8 Blackmagic Design 9 Sirui 10 Viltrox 11 Freefly Systems
Despite not being alliance members, some other brands, such as 7Artisans, TTartisan, AstrHori and Meike, have also introduced their autofocusing lenses for L-mount.
Cameras APS-C Leica T/TL cameras use APS-C sensors. The TL mount version is not dust- or splashproof. Discontinued models: Leica T (Typ 701) Leica TL Leica TL2 Leica CL (2017)
Full-frame Leica SL cameras use full frame sensors. The SL version is dust- and splashproof.
Blackmagic Cinema Camera 6K Blackmagic PYXIS 6K DJI Ronin 4D Leica SL (Typ 601) Leica SL2 Leica SL2-S Leica SL3 Leica SL3S Panasonic S1R Panasonic Lumix S1 Panasonic Lumix S1H Panasonic LUMIX BS1H Panasonic Lumix S5 Panasonic Lumix S5II/S5IIX Panasonic Lumix S9 Sigma fp Sigma fp L Sigma BF
The Unspecified Foveon-based full-frame camera Sigma initially announced at the original event has been withdrawn.シグマ、開発中のフルサイズFoveonセンサーを白紙に
Lenses Leica has an existing range of fifteen L-Mount lenses.
Panasonic committed to releasing a total of ten lenses for the L-mount by the end of 2020, beginning with the 50mm F/1.4 prime and the two zooms listed below; stating that they would provide details at Photokina 2019.PanasonicLumixVideo channel
Sigma plans to release a wide range of lenses. 14 primes from Sigma's 'Global Vision' range, primarily designed for reflex cameras with short flange depths and currently available for the mirrorless Sony E-mount, will also be released in L-Mount from 2019. These will be followed by a range designed specifically for mirrorless parameters.
APS-C Prime Leica APO-Macro-Elmarit-TL 1:2.8 / 60 ASPH Leica Summilux-TL 1:1.4 / 35 ASPH Leica Summicron-TL 1:2 / 23 ASPH Leica Elmarit-TL 1:2.8 / 18 ASPH Sigma 16mm f/1.4 DC DN Contemporary Sigma 30mm f/1.4 DC DN Contemporary Sigma 56mm f/1.4 DC DN Contemporary
Zoom Leica Super-Vario-Elmar-TL 1:3.5-4.5 / 11-23 ASPH Leica Vario-Elmar-TL 1:3.5-5.6 / 18-56 ASPH Leica APO-Vario-Elmar-TL 1:3.5-4.5 / 55-135 ASPH Sigma 18-50 f/2.8 DC DN Contemporary Sigma 10-18 f/2.8 DC DN Contemporary
Full-frame
Prime Leica Summilux-SL 1:1.4 / 50 ASPH Leica APO-Summicron-SL 1:2 / 75 ASPH Leica APO-Summicron-SL 1:2 / 90 ASPH Leica APO-Summicron-SL 1:2 / 35 ASPH Leica APO-Summicron-SL 1:2 / 50 ASPH Leica APO-Summicron-SL 1:2 / 28 ASPH Panasonic Lumix S 18mm f/1.8 Panasonic Lumix S 24mm f/1.8 Panasonic Lumix S 35mm f/1.8 Panasonic Lumix S PRO 50mm f/1.4 Panasonic Lumix S 50mm f/1.8 Panasonic Lumix S 85mm f/1.8 Panasonic Lumix S 100mm f/2.8 Macro Sigma 17mm f/4 DG DN Contemporary Sigma 20mm f/2 DG DN Contemporary Sigma 24mm f/2 DG DN Contemporary Sigma 24mm f/3.5 DG DN Contemporary Sigma 35mm f/2 DG DN Contemporary Sigma 45mm f/2.8 DG DN Contemporary Sigma 50mm f/2 DG DN Contemporary Sigma 65mm f/2 DG DN Contemporary Sigma 90mm f/2.8 DG DN Contemporary Sigma 14mm f/1.4 DG DN Art Sigma 20mm f/1.4 DG DN Art Sigma 24mm f/1.4 DG DN Art Sigma 35mm f/1.2 DG DN Art Sigma 35mm f/1.4 DG DN Art Sigma 50mm f/1.4 DG DN Art Sigma 85mm f/1.4 DG DN Art Sigma 105mm f/2.8 DG DN MACRO Art Sigma 14mm f/1.8 DG HSM Art Sigma 20mm f/1.4 DG HSM Art Sigma 24mm f/1.4 DG HSM Art Sigma 28mm f/1.4 DG HSM Art Sigma 35mm f/1.4 DG HSM Art Sigma 40mm f/1.4 DG HSM Art Sigma 50mm f/1.4 DG HSM Art Sigma 70mm f/2.8 DG MACRO Art Sigma 85mm f/1.4 DG HSM Art Sigma 105mm f/1.4 DG HSM Art Sigma 135mm f/1.8 DG HSM Art Sigma 500mm f/5.6 DG DN OS Sports Viltrox AF 16mm F1.8 L
Zoom Leica Super-Vario-Elmarit-SL 14-24mm f/2.8 ASPH Leica Super-Vario-Elmar-SL 1:3.5-4.5 / 16-35 ASPH Leica Vario-Elmarit-SL 24–70 mm 2,8 ASPH Leica Vario-Elmarit-SL 1:2.8-4 / 24-90 ASPH Leica Vario-Elmarit-SL 28-70mm f/2.8 Leica Vario-Elmarit-SL 70-200mm f/2.8 ASPH Leica APO-Vario-Elmarit-SL 1:2.8-4 / 90-280 Leica Vario-Elmar-SL 100-400mm f/5-6.3 Panasonic LUMIX S PRO 16-35mm f/4 Panasonic LUMIX S 20-60mm f/3.5-5.6 Panasonic LUMIX S PRO 24-70mm f/2.8 Panasonic LUMIX S 24-105mm f/4 MACRO O.I.S. Panasonic LUMIX S 28-200mm 4-7.1 Macro O.I.S. Panasonic LUMIX S PRO 70-200mm f/4 O.I.S. Panasonic LUMIX S PRO 70-200mm f/2.8 O.I.S. Panasonic LUMIX S 70–300 mm 4.5-5.6 Macro OIS Panasonic Lumix S 14-28mm F4-5.6 Macro Sigma 14-24mm f/2.8 DG DN Art Sigma 16-28mm f/2.8 DG DN Contemporary Sigma 24-70mm f/2.8 DG DN Art Sigma 28-70mm f/2.8 DG DN Contemporary Sigma 70-200mm f/2.8 DG DN Sports Sigma 100-400mm f/5-6.3 DG DN OS Contemporary Sigma 150-600mm f/5-6.3 DG DN OS Sports Sigma 60-600mm f/4.5-6.3 DG DN OS Sports LK Samyang AF 35-150mm F2-2.8 L LK Samyang AF 14-24mm F2.8
Third-party Manual third-party lenses are being produced in L-mount by Irix, 7Artisans (Photoelectric series), Meyer-Optik (Görlitz series), and Kipon HandeVision (IBELUX and IBERIT series').
Full Frame
7Artisans MF 9mm f/5.6 APSH 7Artisans MF 10mm f/2.8 Fisheye 7Artisans MF 10mm f/2.8 Mark II 7Artisans AF 10mm F2.5 7Artisans MF 14mm f/2.8 7Artisans MF 18mm f/5.6 7Artisans MF 35mm f/5.6 7Artisans MF 35mm f/1.4 Ⅲ 7Artisans MF 35mm T1.5 Dream 7Artisans MF 50mm T1.5 Dream 7Artisans MF 75mm T1.5 Dream 7Artisans MF 75mm f/1.4 7Artisans AF 40mm F2.5
DZOfilm Catta Zoom 18-35 mm T2.9-T22 DZOfilm 35-80 mm T2.9-T22 DZOfilm 70-135 mm T2.9-T22
TTArtisan 14mm F2.8 ASPH TTArtisan Tilt-Shift 17mm F4 ASPH TTArtisan 100mm F2.8 Macro 2X TTArtisan 500mm F6.3 Telephoto Lens TTArtisan 11mm F2.8 Fisheye Lens TTArtisan Tilt 50mm F1.4 TTArtisan 50mm F2 TTArtisan 50mm F1.4 ASPH. Full Frame Meyer Optik Görlitz Primoplan 58 f1.9 II Meyer Optik Görlitz Trioplan 35 f2.8 II Meyer Optik Görlitz Lydith 30 f3.5 II Meyer Optik Görlitz Trioplan 50 f2.8 II Meyer Optik Görlitz Biotar 75 f1.5 II Meyer Optik Görlitz Biotar 58 f1.5 II Meyer Optik Görlitz Primoplan 75 f1.9 II Meyer Optik Görlitz Trioplan 100 f2.8 IIhttps://www.meyer-optik-goerlitz.com/en/lenses/trioplan-100-f2.8-ii?number= Irix 11mm T4.3 Cine lens Irix 15mm T2.6 Cine lens Irix 21mm T1.5 Cine lens Irix 30mm T1.5 Cine lens Irix 45mm T1.5 Cine lens Irix 65mm T1.5 Cine lens Irix 150mm T3.0 Tele Cine lens Irix 150mm T3.0 macro 1:1 Cine lens
APS-C
TTArtisan APS-C 25mm F2 TTArtisan APS-C 50mm F0.95 TTArtisan APS-C 23mm F1.4 TTArtisan APS-C 40mm F2.8 MACRO TTArtisan APS-C 17mm F1.4 TTArtisan APS-C 50mm F1.2 TTArtisan APS-C 7.5mm F2 Fisheye TTArtisan APS-C 35mm F1.4
Lens adapters Leica R-Adapter L Leica S-Adapter L Leica M-Adapter L Leica PL-Adapter L Novoflex SL-EOS Adapter Novoflex SL/NIK Adapter Sigma MC-21 SA-L Sigma MC-21 EF-L Sigma-manufactured 'Global Vision' EF-mount lenses are fully supported and compatible; although non-Sigma EF-mount lenses remain unguaranteed.
Notes
External links
Leica L-Mount page Panasonic Lumix S series cameras