Leica 50mm f2 Summicron (Type III) (11817) - Lens

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Model Details

Manual focus normal lens made for M-mount rangefinder cameras introduced by Leica in 1969. Leica made many different versions of the 5cm f2 Summicron that differ in both design and optical formula. This is the third model of the lens. The optical formula changed from 7 elements to 6, and it was advertised as a lightweight version without the infinity lock on the focusing mount. The early examples still have the scalloped focusing ring as seen on the previous versions, but later examples changed to a finer, even knurling. Metal body available in black.

  • Leitz Wetzlar 50mm f2 Summicron (Type III) (6 elements, 4 groups)
  • Minimum focus distance: 1m
  • Aperture blades: 10
  • Size: 51 x 50 mm
  • Weight: 240g
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Leica M

Leica’s M mount was introduced in 1953 alongside its first camera, the M3. Despite the rise of the SLR, Leica cameras have continued to succeed as their unique combination of build quality, speed, and discretion sets them apart from competition. The M bayonet mount, and the cameras introduced alongside it, offered (& continue to offer) a number of advantages over SLRs and other rangefinder cameras.

One big advantage is automatic framelines, which react to the lens on the camera to show accurate framelines in the viewfinder. This is even possible with older Leica Thread Mount (LTM) lenses if the correct adapter is used.

Other manufacturers, such as Cosina Voigtländer, Carl Zeiss, Konica, and Minolta, have also produced rangefinder cameras using Leica M mount.

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Leica 50mm f2 Summicron (Type III) (11817) - Lens Availability & Price History
Date Sold SKU Quality Control Price Image
Available T105013 $1,869.00 Leica 50mm f2 Summicron (Type III) (11817)
Available T113937 $1,869.00 Leica 50mm f2 Summicron (Type III) (11817)
Available T126270 $1,968.00 Leica 50mm f2 Summicron (Type III) (11817)
12 Sep 2025 T54833 € 849.15 Leica 50mm f2 Summicron (Type III) (11817) - Lens Image
11 Jun 2025 T60896 € 1,221.69 Leica 50mm f2 Summicron (Type III) (11817) - Lens Image
19 Sep 2024 T60841 € 899.00 Leica 50mm f2 Summicron (Type III) (11817) - Lens Image
11 Dec 2023 T57761 € 1,173.63 Leica 50mm f2 Summicron (Type III) (11817) - Lens Image
18 Sep 2023 T43930 € 1,213.99 Leica 50mm f2 Summicron (Type III) (11817) - Lens Image
18 May 2023 T38975 € 1,299.00 Leica 50mm f2 Summicron (Type III) (11817) - Lens Image
21 Mar 2023 T39146 € 1,299.00 Leica 50mm f2 Summicron (Type III) (11817) - Lens Image
08 Sep 2022 A68602 € 1,099.00 Leica 50mm f2 Summicron (Type III) (11817) - Lens Image