The Summaron and Elmar 35mm f/3.5 are classics. Small, sharp, and beautifully built. Exactly the kind of glass that deserves to live on a modern Leica M. Until now, no adapter on the market let you use one properly on a digital body. We fixed that.

Standard LTM adapters do not work correctly with the Summaron and Elmar 35mm f/3.5 LTM (Leica Thread Mount Version) on digital M bodies. Their helicoid design creates two specific conflicts: adapters that don't cover the six-bit reader trigger lens errors, and adapters that do cover it block the focusing tab from moving freely.

This adapter solves both. The flange geometry is reconfigured to cover the six-bit reader and clear the focusing tab simultaneously.

• Six-Bit Reader Coverage: The adapter flange fully covers the six-bit reader on digital M bodies. No lens errors, no workarounds.

• Reconfigured Flange Geometry: The flange profile is redesigned so the focusing tab moves freely without any collision. Full range of focus, unrestricted.

• Six-Bit Coding Capable: Code the lens to register as a modern 35mm f/3.5.

• Full Rangefinder Coupling: Machined to exact LTM to M flange-back tolerances for accurate rangefinder focus coupling on every M body.

• Analog & Digital Compatible: Works across the full Leica M range. Film or digital, no restrictions.

• Aerospace-Grade 17-4 Stainless Steel, Silver Finish: CNC machined in Miami from 17-4 stainless steel. Tight tolerances, smooth threading, and a zero-play bayonet fit built to last as long as the glass it carries.

• Thread: 39mm (LTM/L39)

• Mount: Leica M bayonet • Material: 17-4 Stainless Steel, Silver finish

• Compatible Lenses: Summaron 35mm f/3.5, Elmar 35mm f/3.5 (Leica Thread Mount version)

• Compatible Bodies: All Leica M bayonet cameras (analog and digital)

Note: Due to the original design of these lenses, the distance scale will stop at the 1 o'clock position on the focus ring. This is an inherent characteristic of the lens, not a limitation of the adapter.