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Leica APO-SUMMICRON-M 90mm f/2 ASPH

Leica APO-SUMMICRON-M 90mm f/2 ASPH lens
Leica APO-SUMMICRON-M 90mm f/2 ASPH lensLeica APO-SUMMICRON-M 90mm f/2 ASPH lens
 

Full frame sized image

Lenses that create APS-C sized image are designed for digital only. They cannot be used on cameras that have image sensor larger than the APS-C format. These lenses are not suitable for film cameras either.

 

No stepping motor AF

Lenses with stepping motor focusing mechanism are better for contrast based focusing, and are quiter and faster than traditionally focusing lenses.

 

Not stabilized

Image stabilization helps to reduce blur caused by hand shake, especially at high focal length or in low light situations. Image stabilization can give 1 to 3 stop advantage over none stabilized lens, based on the reciprocal rule.

 

Metal mount

Cheaper lenses are usually equipped with plastic mount, while more expensive, professional lenses have metal mount. In general, metal mounts are more durable, and a good thing to have when lenses are changed a lot. When a camera is used mainly with one lens, the material of the lens mount is not that important.

 

No drop-in filter support

Drop-in filters are used in those lenses where either the front lens is too large, or the field of view doesn't permit the use of traditional filters at the front of the lens. Usually bright tele and ultra-wide angle lenses support this filter type.

Apochromatic color 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 90mm lens lets you shoot at relatively short exposure times even in dim light, helping to minimize the effects of camera shake, as when photographing street scenes from a distance.

Leica APO-SUMMICRON-M 90mm f/2 ASPH Specification

Available mount(s) Leica M
Application(s) Portrait, Sports, Landscape
Category(s) Telephoto prime
Multiplier
Stabilizer no
Focal length 90 mm (prime)
Lens construction 5 elements in 5 groups
Angle of view 35mm: 27°
digital: N/A
Number of blades N/A
Maximum aperture f/2
Minimum aperture f/16
Minimum focusing distance 100 cm
Magnification 0.11×
Filter size 55 mm
Size ∅ 64 × 78 mm
Weight 500 g
Notes
AF speed N/A
AF sound
Internal focusing N/A
Internal zoom N/A
Fix front lens N/A
Mount type metal
Weather sealed N/A
Drop in filter no
Ultrasonic AF N/A
Stepping motor AF no
APS-C sized circle no
Low dispersion lens element N/A
Hard case N/A
Soft case N/A
Lens hood N/A
Tripod adapter N/A
Leica APO-SUMMICRON-M 90mm f/2 ASPH Specification

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