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Product Code: 11668
Leica Summilux-M 28mm f/1.4 ASPH Black Anodized Lens is the first Leica-M lens to combine an aperture of f1.4 with the popular 28mm wide-angle focal length. The Summilux-M 28mm f1.4 offers excellent image performance over the entire image field even at full aperture and in the close-up range thanks to a floating element. With its outstanding contrast, the lens delivers the same high performance level of the Summilux-M 35mm f1.4 ASPH.
At full aperture in 35mm format it is a maximum of around 3.4 stops, around 2 stops on Leica M8 models with their slightly smaller format. Stopping down further doesn't bring about any notable reduction as essentially only the natural vignetting remains. A total of ten lens elements are used to achieve a low distrotion of a maximum of 1.1%. To correct colour defects, seven of these are made of glass types with colour dispersion (partial dispersion) while one has an aspherical surface. To maintain performance in the close-up range, one element towards the rear of the optical system is a 'floating element' that moves independently of the rest of the mechanism.
Angle of view (diagonal, horizontal, vertical) | 75°, 65°, 46° |
Number of lenses/groups | 10-Jul |
Position of entrance pupil | 31.9 mm (related to the first lens surface in light direction) |
Focusing range | 0.7 m to infinity |
Scales | Combined meter/feet graduation |
Smallest object field | 526 x 789 mm |
Largest reproduction ratio | 01:21.9 |
Setting/Function | Prefix with click-stops, half steps |
Lowest value | 16 |
Bayonet | Leica M quick-change bayonet |
Filter mount | E49 |
Lens hood | External thread with stop for screw on lens hood (included) |
Length | 81 mm |
Largest diameter | approx. 61 mm |
Weight | approx. 440 g |
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