Voigtländer APO-LANTHAR 50mm F2.0 is a high performance manual focus standard lens optimized for the imaging sensors of Leica rangefinder cameras. Inheriting the apochromatic optical design, the lens is highly corrected to eliminate optical aberrations including longitudinal chromatic aberration.
In addition, it is optimized for the ultimate performance of the resolution and contrast reproducibility. The lens constructed with 8 groups 10 elements has five abnormal partial dispersion glasses, two out of eight elements, each with two aspherical surface, and also floating focus system built-in.
Voigtländer APO-LANTHAR 50mm F2.0 is the ideal form which has both ultimate optical performance and compactness. It addition, the aperture blades with twelve elements employ special shape that becomes round shape with not only at F2, but also at F2.8. This enables circular bokeh effect from point light source.
Focal Length: 50mm
Maximum Aperture: f2
Minimum Aperture: f16
Lens Construction: 10 elements in 8 groups
Minimum Focus Distance: 45cm
Lens Mount: Leica M
Filter Size: 49mm