How Much Is a Used Leica Summaron 35mm Worth? (2026 Price Guide)

The f/3.5 is more common and cheaper, and many owners feel it is the prettier rendering lens with a slightly more classic look. The f/2.8 gives two-thirds of a stop more speed and a touch more contrast, but the screw-mount f/2.8 was made in small numbers and commands a premium. If you want the affordable classic look, the f/3.5 is the easy pick; choose the f/2.8 only if you need the extra speed.

Inspect the glass for haze, fog, fungus, and cleaning marks, since internal haze lowers contrast on these older wides. Work the aperture ring and confirm the ten blades are dry and snap cleanly, as oil on the blades is a common fault. Check that focus turns smoothly without stiffness or grit, and look for any element separation showing as colored edges or a cloudy ring near the cemented groups.

Yes. The screw-mount Summaron mounts on any Leica M with an LTM-to-M adapter and couples to the rangefinder; a 35mm adapter that brings up the 35mm frame lines is ideal. It also adapts cleanly to mirrorless bodies such as Sony E, Fuji X, and Leica SL with a low-cost LTM adapter, where you compose on screen. Note the f/2.8 was also sold in native M mount, so confirm which mount a listing actually has.