Leica Super-Elmar-M 21mm f/3.4 ASPH. - Leica M Mount

The Leica Super-Elmar-M 21mm f/3.4 ASPH. is a compact ultra-wide-angle lens for the M-system. It is celebrated for its remarkable lack of distortion and high contrast, even when used wide open. The lens replaces the older 21mm Elmarit and provides superior performance in a significantly smaller package. It is particularly well-suited for architectural and landscape photography where straight lines and corner-to-corner detail are paramount. When buying used, ensure the metal screw-on lens hood is included and not cross-threaded, as these are specific to the model. The focus ring is typically very smooth with a short throw; check for any inconsistencies. SDS examines the rear element, which sits deep in the mount, for any damage or scratches. We also confirm that the 6-bit coding is intact, ensuring the camera correctly identifies the lens for digital correction and EXIF data.