Voigtlander APO-LANTHAR 50mm f/2.0 Aspherical Lens

A sophisticated normal-length M-mount prime, the APO-LANTHAR 50mm f/2 Aspherical Lens from Voigtlander holds the elite distinction of being part of the APO-LANTHAR series of optically refined, apochromatic lenses. The apochromatic design makes the on-axis chromatic aberration of RGB light wavelengths constituting the three primary colors of light as close to zero as possible. A series of anomalous partial dispersion and aspherical elements help to suppress virtually all aberrations for especially high sharpness and color accuracy. A manual focus design is employed, along with a high precision helicoid, for refined focusing control. Additionally, a 12-blade diaphragm forms a circular opening when using the wider apertures, creating a pleasing circular bokeh from point light sources.Normal-length prime designed for full-frame M-mount cameras, however, can provide a 75mm equivalent focal length if used with APS-C format camerasBright f/2 maximum aperture benefits working in low-light conditions and also affords greater control over focus position for selective focus applicationsApochromatic design virtually eliminates color fringing and chromatic aberrations for higher clarity and color fidelityTwo aspherical elements limit spherical aberrations and distortions for improved sharpness and accurate rendering10 elements, eight groups designManual focus design with a high-accuracy all-metal helicoid for high-precision control.A 12-blade diaphragm contributes to a pleasing out-of-focus quality when working with shallow depth of field techniques.