An impressively wide and fast lens, the Summilux-M 21mm f/1.4 ASPH. from Leica is a versatile M-mount prime delivering exceptional image quality. The super wide-angle focal length is complemented by the use of five anomalous partial dispersion and a pair of aspherical elements to suppress chromatic and spherical aberrations in order to deliver a high degree of sharpness and clarity with well-controlled vignetting and distortion. The optical design also incorporates a floating elements system to provide consistent image quality throughout the focusing range.
Focal Length | 21mm |
Maximum Aperture | f/1.4 |
Minimum Aperture | f/16 |
Lens Mount | Leica M |
Angle of View | 92° |
Minimum Focus Distance | 2.3' / 70 cm |
Macro Reproduction Ratio | 1:29 |
Optical Design | 10 Elements in 8 Groups |
Focus Type | Manual Focus |
Filter Size | None |
Dimensions (ø x L) | 2.7 x 2.6" / 69.5 x 66 mm |
Weight | 1.3 lb / 580 g |
Package Weight | 2.6 lb |
Box Dimensions (LxWxH) | 11.5 x 7.5 x 6.1" |