Leica Summilux-M 28mm f/1.4 ASPH. Lens
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.
Highlights:
- Diagonal picture angle: 75°
- Working range: 0.7 m to infinity
- Biggest scale: 1: 21.9
- Number of lenses/groups: 10/7
- Lens hood: can be screwed on
- Filter/filter thread: E49
- Made in Germany
Features:
- f/1.4 ultra-fast aperture for high-speed wide-angle photography
- 28mm wide-angle focal length with 75° diagonal view angle (65° horizontal, 46° vertical)
- First Leica M-lens combining f/1.4 aperture with 28mm focal length
- Excellent image performance across entire image field at full aperture
- Floating element maintains high performance in close-up range
- Exceptional contrast matching or exceeding Summilux-M 35mm f/1.4 ASPH.
- 10 lens elements in 7 groups with 1 aspherical surface
- Seven lens elements with anomalous color dispersion (partial dispersion)
- Extremely low distortion at maximum 1.1% for a wide-angle lens
- Maximum vignetting of 3.4 stops at full aperture in corners
- Vignetting reduces to 1.8 stops at f/5.6 and 0.8 stops at f/8
- Close focus distance of 0.7 meters
- Click-stop diaphragm with half-increment lock settings
- Smallest aperture of f/16
- Leica M bayonet
- E49 filter thread
- Screw-on lens hood included
- Unmistakable visual signature
- High imaging performance for wide-angle photography
- Made in Germany
Compatible With:
Cameras:
Filters:
Dimensions:
ø: 2.4 x L: 2.6"
Weight:
0.97 lbs
Materials:
Metal
Manufacturer SKU:
11668
In The Box:
Leica Summilux-M 28mm f/1.4 ASPH. Lens - Black
Leica Front Lens Cap
Leica Rear Lens Cap
Leica Lens Hood (Screw-On)
Limited 3-Year Manufacturer Warranty
