Summilux-M 28mm /f1.4 ASPH black anodized (E49)
Leica Summilux-M 28mm f/1.4 ASPH. Black
Leica Camera is pleased to introduce the Leica Summilux-M 28mm f/1.4 ASPH, the first Leica M-lens to combine an initial aperture of f/1.4 with the popular 28mm wide-angle focal length. This high speed wide-angle lens offers photographers high imaging performance with an unmistakable visual signature.
The Leica Summilux-M 28mm f/1.4 ASPH. rounds of f the range of high-speed M wide angle focal lengths. It 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 exceptional contrast, the lens delivers the same recognized high performance level as the Leica Summilux-M 35mm f/1.4 ASPH., and in some respects actually out performs it.
The vignetting that is typical of every optical system is naturally more defined on a wide angle lens, particularly a high speed one like this, than on standard lenses or those with a long focal length. At full aperture in 35mm format it is a maximum, i.e. in the corners of the image, of around 3.4 stops. Stopping down to 5.6 visibly reduces this light falloff – to 1.8 and 0.8 stops respectively. Stopping down further does not bring about any notable reduction as essentially only the natural vignetting remains. Distortion is extremely low for a wide angle lens at a maxi-mum of 1.1%, which is rarely noticeable in practice. A total of ten lens elements are used to achieve this exceptional performance. To correct color defects, seven of these are made of glass types with anomalous color 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.
Diagonal picture angle: 75 °
Working range: 0.7 m to infinity
Biggest scale: 1: 21.9
Number of lenses/groups: 10/7
Length * 1: 67 mm
Weight * 1: 440 g
Lens hood: can be screwed on
Filter/filter thread: E49
Made in Germany
Angle of view (diagonal, horizontal, vertical):
75°, 65°, 46°
Number of lenses/groups:
10 / 7
Position of entrance pupil:
31.9 mm (related to the first lens surface in light direction)
0.7 m to infinity
Combined meter/feet graduation
Smallest object field:
526 x 789 mm
Largest reproduction ratio:
Prefix with click-stops, half steps
Leica M quick-change bayonet
External thread with stop for screw on lens hood (included)
Dimension and weight
Approx. 61 mm
Approx. 440 g
Lens, lens front cover E49, lens rear cover
Leica Camera AG (‘LEICA’) provides a three-year product limited warranty for this LEICA camera valid from the date of purchase from an authorized LEICA dealer, including the accessories contained in the original packaging, which are valid for two years.
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