Leica APO-Summicron-M 90mm f/2.0 ASPH
A top seller M Lens, a must-have for all Leica M Users.
- Technical Specs
Apochromatic colour correction and an aspherical lens surface are combined for the first time in this lens of this type. Of its five individual elements, two are made of high-refraction glass, while two others feature anomalous partial dispersion. Its brilliance and quality of resolution are exemplary even at full aperture. Light falloff is very low. Its fast aperture, for a 90 mm lens, lets you shoot at relatively short exposure times even in dim light, helping to minimize the effects of camera shake, for instance when photographing street scenes from a distance.
|Angle of view (diagonal, horizontal, vertical)||27°, 23°, 15°|
|Number of lenses/groups||5 / 5|
|Focal length||90.9 mm|
|Position of entrance pupil||58.6 mm (related to the first lens surface in light direction)|
|Focusing range||1 m to Infinity|
|Scales||Combined meter/feet graduation|
|Smallest object field||220 mm x 330 mm|
|Largest reproduction ratio||1:9|
|Setting/Function||With click-stops, half values available, manual diaphragm|
|Bayonet||Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models|
|Filter mount||Internal thread for screw-in type filters E 55|
|Lens hood||Built-in, telescopic|
|Dimension and weight:|
|Largest diameter||64 mm|
|Weight||approx. 500 g|
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