Leica's fastest R 180 — the manual-focus APO-Summicron-R 180mm f/2, an f/2 apochromatic telephoto.
The Leica APO-Summicron-R 180mm f/2 is the fastest 180mm telephoto prime of the Leica R reflex system, pairing a bright f/2 aperture with apochromatic correction. It was among the most ambitious R telephotos and is highly regarded for its rendering. It gave R photographers a very fast, corrected medium telephoto for demanding work.
This is a manual-focus Leica R lens with a 180mm focal length and a maximum aperture of f/2, apochromatically corrected (APO). It is a full-frame medium telephoto prime for the reflex line and a large, heavy lens for its class. Buyers should confirm the filter arrangement, tripod collar and cam configuration on the specific example, and verify authenticity given its value.
The 180mm focal length at f/2 gives strong subject isolation and low-light capability rare in a telephoto of this length, suiting portraits, sport, wildlife and available-light work. The APO correction targets clean rendering with controlled colour fringing at wide apertures. It separates subjects from the background emphatically while keeping fine detail.
On the used market the APO-Summicron-R 180mm is one of the most sought-after and valuable R telephotos, so verify authenticity and full condition before buying. Check for internal haze, fungus and dust, confirm the aperture operates cleanly, and inspect the tripod collar and heavy mount for wear. Verify the cam setup for correct metering on your R body; it is prized when adapted to mirrorless via a Leica R adapter.