Leitz's vintage M39 telephoto — the Hektor 135mm in screw mount for early Leica cameras.
The Leitz Hektor 135mm in M39 screw fitting is a vintage Leica telephoto from the pre-M-mount era. The Hektor was Leica's early telephoto design. At 135mm, it provides useful reach on screw-mount Leica cameras. The M39 thread mount is the original Leica mount system from the 1920s-1950s. A piece of early Leica telephoto history.
Optical performance is basic by modern standards — the Hektor is one of Leica's earliest telephoto designs. Sharpness is acceptable when stopped down. The rendering has vintage character. The M39 mount adapts to Leica M and mirrorless cameras via adapters. On digital cameras, live view enables practical focusing at this telephoto distance.
Leica M39 thread mount. Filter thread varies. Weight is compact. Build quality is classic Leitz precision from the screw-mount era. Manual focus. The M39 thread adapts to Leica M via LTM-M adapter and to mirrorless via appropriate adapters. The Hektor design predates more sophisticated Leica telephoto formulas.
Available at low Leica prices — the vintage Hektor design reduces demand. Check clean optics and smooth focus. A piece of early Leica history. The Hektor is one of Leica's oldest telephoto designs. Only for Leica collectors and vintage enthusiasts. Better Leica telephoto options exist in M-mount.