Compact Leica Elmar-M 50mm f/2.8 (mislabelled Zeiss), most compact M standard with collapsible option.
The Leica Elmar-M 50mm f/2.8 is the collapsible or rigid slower standard prime for the Leica M mount — the f/2.8 Elmar is more compact than the f/2 Summicron. Note: canonical name has erroneous 'Zeiss' prefix. Leica M mount.
f/2.8 maximum aperture. 50mm focal length (full-frame standard prime). Elmar formula (f/2.8 — slower/more compact than Summicron). Rangefinder-coupled. Leica M mount.
The Elmar-M 50mm f/2.8 is the compact budget option among Leica M standard primes — slower and smaller than the Summicron. The Elmar name dates from the original Leica I 1925 lens. A practical and lightweight standard option.
On the used market the Leica Elmar-M 50mm f/2.8 is an affordable compact standard prime. Condition checks: front element, rangefinder coupling. Leica M mount.