The Leitz 50mm f/2.5 Summarit-M is a standard prime for the Leica M rangefinder bayonet mount, sitting in the modern M-system line-up as a more compact, slower-aperture alternative to the Summicron-M. Designed for everyday shooting on film and digital M bodies, it offers a normal field of view in a smaller, lighter package than the f/2 and f/1.4 fifties.

At UK auction in recent years, hammer prices for the 50mm f/2.5 Summarit-M have ranged from £438 to £750, with the two recorded saleroom results averaging around £594. These are wholesale hammer figures rather than dealer retail, so a clean copy bought from a shop in 2026 typically sells for more than the auction range suggests, and condition is the main factor in what each example is worth.