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The Leica APO-Summicron-SL 90mm f/2 ASPH expands the SL prime lens lineup. The 90mm focal length is perfect for portraiture work or other situations that require the extra reach offered by a 90mm prime lens. A minimum focus distance of 0.6 meters gives the lens additional flexibility.
The optical design contains a total of 11 elements, of one of which is an aspherical element and four are made from glasses with anomalous partial dispersion for the correction of chromatic aberrations. The front element has the Leica AquaDura coating, which protects the lens from dirt and scratching.
|Angle of view (diagonal, horizontal, vertical)||27.3°/22.9°/15.4°|
|Number of lenses/groups||11/9|
|Position of entrance pupil||22.9 mm|
|Working range||0.6 m to infinity|
|Largest reproduction ratio||1:5|
|Aperture||Electronically controlled aperture, set using turn/push wheel on camera, including half values|
|Aperture setting range||2-22|
|Bayonet/sensor format||Leica L bayonet, full-frame 35 mm format
Dimensions and weight: Length to bayonet mount
|Largest diameter approx||73mm|
|Weight approx||700 grams|