Leica's screw-mount Summicron reissue — a limited 50mm f/2 made for the Japanese market.
This Summicron 50mm f/2 is the limited screw-mount reissue produced around 1999, made for the Japanese market to accompany the commemorative M and screw-mount bodies of that period. It revived the collapsible-style Summicron in modern manufacture on the 39mm Leica Thread Mount as a collector item rather than a mainstream production lens.
This is a manual-focus, rangefinder-coupled Leica Thread Mount lens with a 50mm focal length and a maximum aperture of f/2. As a modern reissue it uses contemporary multi-coating and current mechanical tolerances while following the classic Summicron form. Verify the exact set contents and finish, as it was sold in limited packaged editions.
The 50mm f/2 remains the reference rangefinder standard for street, travel, general and portrait use. Being a modern build, this reissue delivers cleaner contrast and coating performance than the vintage originals while retaining the compact classic handling that defines the Summicron.
Because it was a limited edition, values are strongly collector-driven and tied to boxed completeness rather than optical rarity. Even on a modern lens, check the glass for cleaning marks and any handling wear, confirm smooth focus and dry aperture blades, and prefer complete, unworn examples. It adapts to Leica M via a 39-to-M adapter and to mirrorless with an L39 adapter.