Leica's classic wide-angle — the Summaron 35mm f/2.8 with spectacles for M3 compatibility.
The Leica Summaron-M 35mm f/2.8 is a classic wide-angle prime from Leica for the M bayonet, reintroduced in the 2010s as a modern tribute to the original 1950s Summaron design. The 'Spectacles' accessory refers to a clip-on supplementary viewfinder that attaches to the Summaron and provides external 35mm framelines — originally needed for older Leica M bodies that lacked 35mm frame lines in the viewfinder.
The lens delivers 35mm at f/2.8 maximum aperture with Leica M bayonet coupling and 6-bit coding, rangefinder focus coupling, manual aperture, and full-frame coverage. The Spectacles accessory clips onto the front of the lens and provides a small external viewfinder corrected for the 35mm field of view.
The Spectacles viewfinder is both a practical accessory for M2 and M3 bodies lacking 35mm framelines, and a distinctive visual accessory that gives the lens a retro character valued by collectors and photographers who appreciate Leica's heritage. The Summaron f/2.8 delivers Leica's characteristic rendering at a lower cost than the faster f/1.4 or f/2 Summicron-M equivalents.
Verify the Spectacles viewfinder accessory is present and undamaged. Test rangefinder coupling accuracy. Check 6-bit coding contacts for clean digital M body recognition. Inspect element condition. Test aperture blade operation. Complete lens-plus-Spectacles sets command a premium over lens-only listings.