Leica's current 50mm Summicron — 6-bit coded for digital M with retractable hood.
The Leica Summicron-M 50mm f/2 (Black, 6-bit coded) is the current production version of Leica's standard prime with 6-bit digital coding. The coding enables automatic lens detection on digital M bodies. See also IDs 626 and 1339.
Same outstanding Summicron optics as non-coded version — sharp from f/2.8 with Leica's characteristic rendering. The 6-bit coded bayonet communicates with digital M bodies for automatic frameline selection, lens correction profiles, and EXIF recording.
Leica M mount with 6-bit coded bayonet. E39 filter thread. Retractable built-in hood on current version. All-metal construction. Manual focus. Approximately 240g.
Available used at luxury prices. The 6-bit coding is essential for optimal performance on digital M bodies. Likely a variant listing alongside IDs 626 and 1339. The definitive M-mount normal lens with digital compatibility.