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Leica Apo-Summicron-SL 50mm f/2 asph - Demo Model L-Mount

Lens for system cameras - full format
|
Item Nr. 77474
Directly to your home - no shipping costs
Demo item
Black Leica Apo-Summicron-SL 50mm f/2 asph lens for L-Mount cameras, shown from the front, with orange focal length marking.
Leica Apo-Summicron-SL 50mm f/2 asph L-Mount
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Immediately available Delivery probably between 16.11.2026 and 18.11.2026
4.990,-
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71,90
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Information

Short profile for Leica Apo-Summicron-SL 50mm f/2 asph - Demo Model L-Mount

  • Fixed-focal-length lens
  • The true Leica classic
  • Balanced bokeh
  • Electronically controlled aperture
  • Contrast right down to the very edges
  • Demo model

Disposing of electrical appliances, batteries and rechargeable batteries correctly

Product description for Leica Apo-Summicron-SL 50mm f/2 asph - Demo Model L-Mount

The new 50 mm lens sets new standards in terms of compactness and performance. Built on innovative technologies, the APO-Summicron-SL 1:2/50 ASPH. leaves nothing to be desired. Brilliance, microcontrast right down to the very edges, and balanced bokeh make this lens a true Leica classic.

Leica APO-Summicron-SL 1:2/50 ASPH.:
Versatile standard focallength
Leica Camera AG is expanding the Summicron-SL line with another high-performance lens:
the Leica APO-Summicron-SL 1:2/50 ASPH. Whether for photojournalism, travel, studio, architectural, or landscape photography, portraits, close-ups, or documentary work—thanks to its focal length, the new SL lens is extremely versatile and can be used in almost any situation. Like the other Summicron-SL lenses, the APO-Summicron-SL 1:2/50 ASPH. sets new standards and establishes itself as the new benchmark among standard focal lengths. The L-Mount standard used also makes the APO-Summicron-SL 1:2/50 ASPH. fully compatible with cameras from other L-Mount Alliance partners that also feature the lens mount developed by Leica Camera.

Twelve highly complex lens elements—three of which have aspherical surfaces—arranged in ten groups contribute to the highest possible image quality, even at wide-open aperture—because for Leica lenses, the wide-open aperture is the working aperture. Stopping down is therefore purely a stylistic tool for composing the image and is not necessary to improve performance. Natural skin tones, smooth transitions into the bokeh, outstanding detail contrast, and sharpness all the way to the edges of distortion-free images are further hallmarks of Leica Camera lenses and also apply to the APO-Summicron-SL 1:2/50 ASPH..

Every glass optical element—such as a lens—refracts light of different colors to varying degrees. This means that not all light rays from a multicolored object focus at a single pixel—resulting in chromatic aberrations. These chromatic aberrations have been corrected apochromatically in the new APO-Summicron-SL 1:2/50 ASPH. To achieve this, most of the lens elements feature anomalous partial dispersion and are made of high-quality specialty glass; their sophisticated processing pushes even the innovative manufacturing methods at the Leica factory to the limits of what is possible.

The autofocus system used in all Summicron-SL lenses employs extremely powerful and robust stepper motors with DSD (Dual Syncro Drive). These motors allow the entire focusing range to be traversed in just about 250 milliseconds. In addition to autofocus, Leica Camera is also breaking new ground in manual focusing: Summicron-SL lenses feature a novel design for the manual focus ring. Embedded within it is a ring magnet with alternating north-south polarization. When the ring is rotated, the magnetic field changes. A sensor evaluates the magnetic field and sends its measurement signals to the main processor. Depending on the angle of rotation and the rotation speed, the focus position is adjusted accordingly—allowing for even faster and more precise manual focusing.

Both the engineering and design of the state-of-the-art Summicron-SL line represent the next step in lens development for the Leica SL system. New, extremely precise manufacturing methods and measurement techniques were developed specifically for their production. The result is evident not only in more compact dimensions and significantly lower weight, but also in excellent imaging performance. Special attention was paid during the design of the APO-Summicron-SL prime lenses to minimizing stray light and reflections. In addition to optimizing the optical and mechanical design, unavoidable reflections are reduced to the absolute minimum through a high-quality coating on the optical surfaces. The lenses can also be used without hesitation in almost any weather conditions, thanks to their dust- and splash-proof construction and the Aquadura coating on the outer lens elements.

APO
Apochromatic and more
“APO” designates the Leica lenses with the best imaging performance. In the SL system, all SL-Summicron lenses—from telephoto to wide-angle—bear this coveted designation. For a long time, this designation was reserved for telephoto lenses, as only they could achieve the required quality.

As early as 1975—more than 40 years ago—Leica introduced the first APO lens, the APO-TELYT-R 1:3.4/180 mm. In 2012, the APO-Summicron-M 1:2/50 mm ASPH. became the first standard-focal-length lens to receive this distinction.

Thanks to technological advances, complex designs, and new manufacturing methods in the SL system, the developers were able to perfectly maximize optical performance.

At Leica, however, we do not interpret the APO designation as referring solely to the correction of chromatic aberration—which is what the purely scientific definition of the term “apochromatic” denotes. Rather, all other chromatic and monochromatic image aberrations must also be optimized to a similar degree. This achievement is demonstrated by the corresponding MTF graphs and practically reaches the physically possible diffraction limits. Over the long period since the introduction of the first APO lens, the associated quality standards have continuously risen, as today’s APO lenses are future-proof and will deliver impressive results even when paired with the highest-resolution image sensors.

Demo model

Technical data

Optics
Focal length
50 mm
optical zoom
1 compartment
Luminous intensity f/
2,0
Close-up
0,35 m
max. magnification
1:5
Lens type
Fixed focal length
Autofocus
yes
Technology
suitable for
Full format
Lens connection
L-mount
Equipment
Filter thread
67 mm
Image stabilizer
no
Dimensions and weight
Length approx.
102 mm
Diameter approx.
73 mm
Weight approx.
740 g
Other
Shade
black
Field of application
Photography
Scope of delivery
In the scope of delivery
The goods are delivered with the accessories specified by the manufacturer as being included in the scope of delivery.

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Security information for Leica Apo-Summicron-SL 50mm f/2 asph - Demo Model L-Mount

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Manufacturer information

The manufacturer information includes the address and related information of the manufacturer of the product.

Leica Leica Camera AG
Leica Produkt Support
Am Leitz Park 5
35578 Wetzlar
Deutschland

info@leica-camera.com
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Leica Apo-Summicron-SL 50mm f/2 asph - Demo Model L-Mount

4.990,-
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last offer price 4.990,-