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Leica APO-Summicron-SL 90mm f/2 ASPH Lens - 11179
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Abt Model: 11179
UPC: 4022243111790
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Leica APO-Summicron-SL 90mm f/2 ASPH Lens - 11179
Its high speed and the unique aesthetics of its depth of focus make this telephoto lens the first choice for portrait photographers. At the decisive moment, its almost silent and simultaneously precise autofocus gives photographers more time to concentrate fully on the creative aspects of their subject, the person in front of their camera. Like all Leica SL-Lenses, the APO-Summicron-SL 1:2/90 ASPH. is perfectly matched to the modern SL-System and is constructed for a long working life under professional shooting conditions.
Features
- AF System with Dual Syncro Drive
From zero to sharp in no time
The AF system of the Summicron-SL lenses is fast, precise, and almost silent. They thank their outstanding AF performance figures to the autofocus drive unit they share. These are limited only by the mass of the lens elements moved when focusing, the travel from infinity to the closest focusing distance and, of course, the amount of space available. In order to preserve the compact dimensions of the lenses, the integration of these components must follow an integral approach. - Higher Contrast
For greater perceived depth
With an initial aperture of f/2, the SL-Summicron lenses are significantly more compact than faster lenses, but still allow photographers to work with similar depth of field. The reason for this is contrast: the zone of highest contrast is perceived by viewers as being sharp, while zones with lower contrast are regarded as being unsharp. - Optically and Mechanically
A new standard
In the construction of the Summicron-SL lenses, particular attention has been paid to the prevention of stray light and reflections. The optimization of the optical and mechanical design was carried out in elaborate simulations before the construction of the first prototype lenses. Unavoidable reflections are reduced to the best possible level by high-quality coating of lens surfaces. - Complex Electronics
For uncomplicated handling
The focusing and aperture setting functions of a SL-Summicron lens are based on a multitude of control systems and mathematical operations. The demands on the electronics are particularly high in the case of the double focusing system. - Manual Focusing
A new experience
SL-Summicron Lenses feature a totally new manual focusing ring construction concept. In this concept, a ring magnet with alternating north-south magnetization is embedded in the manual focusing ring. The magnetic field changes its polarity when the ring is turned. A sensor monitors the status of the magnetic field and sends the data to the main processor. The drive then shifts the lens to the corresponding focusing position on the basis of the angle of rotation and the rotational speed. - Impressive
Down to the smallest detail
The consistently compact dimensions, low weight, and the excellent grip and feel of the SL-Summicron lenses are particularly impressive when shooting. Thanks to the almost identical design of the Summicron-SL lenses, feeling for the MF ring is unnecessary after switching lenses and the center of gravity remains largely the same. This means that the camera always lies perfectly in the hand and makes working from a tripod much easier. - Constructional Details
The optical system of the APO-Summicron-SL 90 f/2 ASPH. is comprised of 11 elements, one of which has an aspherical surface. A very high proportion of these elements is manufactured from specially formulated, high-quality glass types for the correction of chromatic aberration. Their particular optical property, so-called anomalous partial dispersion, enables compensation for chromatic aberrations resulting from the other glasses in the optical system. As a result of this, even highlights in images remain almost completely free of color fringing.
Specifications
- Field Angle (Diagonal, horizontal, vertical): 27.3° / 22.9° / 15.4°
- Optical Design:
- Number of Lenses / Groups: 11 / 9
- Number of Asph. Surfaces / Lenses: 1 / 1
- Entrance Pupil Position: 22.9 mm
- Distance Setting:
- Working Range: 0.6 m to infinity
- Smallest Object Field: 120 x 180 mm
- Largest Reproduction Ratio: 1:5
- Aperture:
- Setting / Function: Electronically controlled aperture, set using turn/push wheel on camera, including half and third values
- Aperture Setting Range: 2 - 22
- Lowest Value: 22
- Bayonet / Sensor Format: L-Mount, full-frame 35mm format
- Filter Mount: E67
Approximate Dimensions
- Length to Bayonet Mount: 102 mm
- Largest Diameter: 73 mm
Approximate Weight
- Unit: 1.54 lbs
- Shipping: 2 lbs
California customers:
General
Compatibility
Leica
Type
Standard Zoom
Lens Format Coverage
Full Frame
Lens Mount Compatibility
L-Mount
Articles
Key Features
- 11 Lenses And 9 Groups
- 22.9mm Entrance Pupil Position
- 0.6m To Infinity Working Range
- 120 x 180mm Smallest Object Field
- 1:5 Largest Reproduction Ratio
- 2-22 Aperture Setting Range
- E67 Filter Mount
- Black Finish
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