Leica APO-Summicron-M 90mm f/2.0 ASPH

138.000.000 VNĐ

Chọn xem:

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°
Optical design
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
Distance setting
Scales	Combined meter/feet graduation
Smallest object field	220 mm x 330 mm
Largest reproduction ratio	1:9
Aperture
Setting/Function	With click-stops, half values available, manual diaphragm
Lowest value	16
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:
Length	78 mm
Largest diameter	64 mm
Weight	approx. 500 g