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Leica APO-Summicron-SL 50mm f/2 ASPH. Lens

BH #LE502SL • MFR #11185
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Leica APO-Summicron-SL 50mm f/2 ASPH. Lens
Key Features
  • L-Mount Lens/Full-Frame Format
  • Aperture Range: f/2 to f/22
  • Three Aspherical Elements
  • Multi-Layer and AquaDura Coatings
Providing a classic normal-length field of view along with an impressive optical design, the Leica APO-Summicron-SL 50mm f/2 ASPH. is a bright prime lens designed for full-frame L-mount mirrorless cameras. The f/2 maximum aperture balances speed with overall weight and size, resulting in a portable form factor that can excel in available light conditions. Three aspherical elements are used to reduce spherical aberrations and distortion for high sharpness, and the lens also features an apochromatic optical design, which employs anomalous partial dispersion glass to suppress color fringing and chromatic aberrations for high clarity and color accuracy. Multi-layer coatings also help to limit flare and ghosting for increased contrast when working in strong lighting conditions. Complementing the optics is a Dual Syncro Drive stepping motor, which delivers fast and quiet autofocus performance to suit both stills and video applications. Additionally, an AquaDura coating has been applied to the exposed elements and seals have been incorporated in the lens design to benefit working in harsh environmental conditions.
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Leica APO Summicron SL 50mm f/2 ASPH. Overview

Providing a classic normal-length field of view along with an impressive optical design, the Leica APO-Summicron-SL 50mm f/2 ASPH. is a bright prime lens designed for full-frame L-mount mirrorless cameras. The f/2 maximum aperture balances speed with overall weight and size, resulting in a portable form factor that can excel in available light conditions. Three aspherical elements are used to reduce spherical aberrations and distortion for high sharpness, and the lens also features an apochromatic optical design, which employs anomalous partial dispersion glass to suppress color fringing and chromatic aberrations for high clarity and color accuracy. Multi-layer coatings also help to limit flare and ghosting for increased contrast when working in strong lighting conditions. Complementing the optics is a Dual Syncro Drive stepping motor, which delivers fast and quiet autofocus performance to suit both stills and video applications. Additionally, an AquaDura coating has been applied to the exposed elements and seals have been incorporated in the lens design to benefit working in harsh environmental conditions.

Normal-length 50mm f/2 lens is designed for full-frame Leica L-mount mirrorless cameras, however can also be used with APS-C models where it provides a 75mm equivalent focal length.
Bright f/2 maximum aperture benefits working in low-light conditions and also affords greater control over depth of field for working with selective focusing techniques.
Three aspherical elements are used to reduce distortion and spherical aberrations for improved sharpness and accurate rendering.
Apochromatic design employs anomalous partial dispersion glass to suppress chromatic aberrations throughout the aperture range for increased color accuracy and clarity.
Multi-layer coatings have been applied to individual elements to suppress surface reflections, flare, and ghosting for increased contrast and color fidelity.
Dual Syncro Drive stepping motor delivers quick, precise, and near-silent autofocus performance to suit both photo and video applications. This system also avails full-time manual focus override.
Water-repellent AquaDura coating has been applied to the front and rear optical surfaces to protect against moisture and other elements.
Weather-sealed design protects against dust and moisture to benefit working in inclement shooting conditions.

Leica APO Summicron SL 50mm f/2 ASPH. Specs

Key Specs
Focal Length
50mm
Maximum Aperture
f/2
Lens Mount
L-Mount
Lens Format Coverage
Full-Frame
Focus Type
Autofocus
Image Stabilization
No
Filter Size
67 mm (Front)
Maximum Aperture
f/2
Minimum Aperture
f/22
Lens Mount
L-Mount
Lens Format Coverage
Full-Frame
Angle of View
47.2°
Minimum Focus Distance
1.15' / 35 cm
Maximum Magnification
0.2x
Macro Reproduction Ratio
1:5
Optical Design
12 Elements in 10 Groups
Focus Type
Autofocus
Image Stabilization
No
Filter Size
67 mm (Front)
Dimensions (ø x L)
2.87 x 4.02" / 73 x 102 mm
Weight
1.63 lb / 740 g
Packaging Info
Package Weight
3.135 lb
Box Dimensions (LxWxH)
9.3 x 6.7 x 6.7"

Leica APO Summicron SL 50mm f/2 ASPH. Reviews

See any errors on this page? Let us know

Is there a minimum operating temperature ?

Is there a minimum operating temperature ?
Asked by: Anonymous
yes
Answered by: Darrin
Date published: 2022-03-20

Is the focus breathing of this lens very minimal ...

Is the focus breathing of this lens very minimal for video use? Thanks.
Asked by: Steve K
Yes, the breathing on this lens is minimal. For those that do not know this, breathing is the term that describes the movement of air through a lens as it affects the aperture with the lens is zoomed or focusing. The result of breathing is a slight but noticeable change in exposure.
Answered by: Richard
Date published: 2024-03-28

Is the sun hood metal or plastic? Bayonet?

Is the sun hood metal or plastic? Bayonet?
Asked by: Chris
I am holding the two pieces of the lens hood in my hand. The hood came apart on a recent--February 2020-- trip to Yellowstone. I can not find a reference regarding the materials, but I am fairly certain that the ring that attaches to the lens is metal, but the cylinder section, to which the ring was attached until it broke, is, I believe, plastic lined with a felt-like material so as not to scratch the lens when it is in the storage position. If I am wrong, then I am much stronger than I thought, because I can easily squeeze the cylinder portion, but not the ring portion. I think Rob should check with Leica on this.
Answered by: Wayne
Date published: 2020-02-16
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