The Leitz 120mm f/2.5 Hektor is a medium-telephoto lens carrying the Hektor designation used by Leitz for several of its faster, more complex pre- and post-war optics. It was produced for the Leica rangefinder system in two mount variants, LTM (39mm screw) and M bayonet, making it compatible with screw-mount Leicas and the M-series respectively.

Public auction data for this lens is extremely thin, with a single recorded UK hammer result of £22,000 in November 2015. Because that figure is a wholesale saleroom price (excluding buyer's and seller's commission) and the only reference point we have, it should be read as evidence the 120mm f/2.5 Hektor is treated as a serious rarity rather than as a reliable market median in 2026. Anyone trying to work out what a 120mm f/2.5 Hektor is worth today should treat this single data point as indicative only and seek further specialist comparables before transacting.