The Leitz 135mm f/4 Hektor is a short telephoto lens for Leica screw-mount (LTM/L39) rangefinder cameras, dating from the classic Barnack-era Leitz line-up. It was designed for portraits, distant subjects and reportage work where a longer reach than the standard 50mm was needed on cameras such as the Leica III series.

With only a single recorded UK auction hammer result of £45 in 2023, the 135mm f/4 Hektor sits at the affordable end of the vintage Leitz market in 2026, and clean, fully-working examples typically sell for modest two-figure sums at saleroom level. Because hammer prices reflect wholesale auction levels rather than dealer retail, what a Hektor is worth on a shop shelf is generally higher than what it fetches under the gavel. Condition, glass clarity and the presence of the original chrome finish drive most of the price variation, with cosmetically poor or hazy copies selling for less.