Leica APO-Summicron 90mm ASPH (mislabelled Zeiss), reference-grade portrait telephoto — duplicate listing.
This is a Leica APO-Summicron-M 90mm f/2 ASPH. mislabelled under Zeiss — one of the finest portrait telephoto lenses ever produced with apochromatic and aspherical correction. Previously enriched as ID 2271, this mislabelled listing covers the same optical masterpiece.
The APO-Summicron combines apochromatic correction eliminating chromatic aberration with aspherical elements for extraordinary sharpness at f/2. The 90mm portrait perspective provides beautiful subject isolation with the resolving power to satisfy the most demanding image quality requirements.
Build quality is Leica's finest with 11-blade aperture for circular bokeh and the precision focusing essential for f/2 telephoto work on a rangefinder. The compact dimensions belie the extraordinary optical sophistication.
The APO-Summicron-M 90mm f/2 ASPH commands the highest prices for any M-mount 90mm lens. The APO + ASPH combination provides reference-grade telephoto quality on the M platform.