Pairing the classic normal focal length with an optically refined design, the APO-Summicron-M 50mm f/2 ASPH. Lens from Leica is a fast standard prime characterized by its apochromatic designation. Featuring anomalous partial dispersion and high-refractive-index glass in its design, this lens focuses red, green, and blue wavelengths at the same focal plane, virtually eliminating chromatic aberrations. One aspherical element is also featured in the design to reduce spherical aberrations, and a floating element maintains clarity and sharpness throughout the focusing range from 2.3' to infinity. This compact 50mm lens is also distinguished by its compact form factor, making it ideal for everyday use. Like all M-mount lenses, this 50mm f/2 features a manual focus design and a convenient focusing tab for more refined control during use.
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Key Features
- Full-Frame | f/2 to f/16
- Apochromatic Design
- One Aspherical Element
- Floating Elements System
Pairing the classic normal focal length with an optically refined design, the APO-Summicron-M 50mm f/2 ASPH. Lens from Leica is a fast standard prime characterized by its apochromatic designation. Featuring anomalous partial dispersion and high-refractive-index glass in its design, this lens focuses red, green, and blue wavelengths at the same focal plane, virtually eliminating chromatic aberrations. One aspherical element is also featured in the design to reduce spherical aberrations, and a floating element maintains clarity and sharpness throughout the focusing range from 2.3' to infinity. This compact 50mm lens is also distinguished by its compact form factor, making it ideal for everyday use. Like all M-mount lenses, this 50mm f/2 features a manual focus design and a convenient focusing tab for more refined control during use.
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Leica APO-Summicron-M 50mm f/2 ASPH. Overview
Apochromatic design employs three elements made from anomalous partial color dispersion glass, as well as two high refractive index elements, in order to suppress chromatic aberrations throughout the aperture range for increased color accuracy and clarity.
One aspherical element reduces spherical aberrations for improved sharpness from edge to edge.
A floating element is used to maintain clarity and sharpness throughout the focusing range, from 2.3' to infinity.
In addition to the apochromatic designation, this lens also pairs a Gaussian type optical construction in front of the aperture along with a design resembling the Summilux-M 50mm f/1.4 behind the aperture, in order to significantly reduce distortion while also increasing overall sharpness and consistent illumination.
Bright f/2 maximum aperture benefits working in difficult lighting conditions and also affords greater control over depth of field.
Compact overall design is ideal for use in everyday shooting situations.
Manual focus design provides a minimum focusing distance of 2.3' with a maximum magnification ratio of 1:11.3.
Built-in extendable lens hood shades and protects the front element to reduce lens flare and ghosting. Additionally, the front of the lens is threaded to accept 39mm screw-in filters.
EAN: 4022243111608
Leica APO-Summicron-M 50mm f/2 ASPH. Specs
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Packaging Info
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Leica APO-Summicron-M 50mm f/2 ASPH. Reviews
Tack Sharp
By Arthur
Rated 5 out of 5
Date: 2025-03-27
Special lens. Nothing to add, except a few black and White photos from the M11 monochrom
Excellent optics, great construction, small and compact
By Vincent
Rated 5 out of 5
Date: 2021-08-24
The Leica APO Summicron M 50/2 ASPH is expensive, but is simply one of the very best lenses I have ever used. It produces a bit more of the analytical look than my classics, but has more 'character' than my 'modern' 50s. Nice smooth color and value gradients. Yet, where it is in focus, it produces bitingly sharp images. First class micro-contrasts. Undetectably CA and distortions. Sharp from corner-to-corner. Built to last. Smooth operations. Does not block the M viewfinder. Nothing to complain.
See any errors on this page?
Why is the weight 300g and exactly the same as the
Why is the weight 300g and exactly the same as the black one? I thought this grey one is solid brass?
According to the manufacturer, the Leica APO-Summicron-M 50mm f/2 ASPH. Lens is made from aluminum for all 3 colors so they have the same weight.
Date published: 2026-07-31
Is this Silver Anodized version constructed with ...
Is this Silver Anodized version constructed with aluminum or brass? What material is the mount part?
The top plate on the silver M11 is made of solid brass.
Date published: 2022-02-08
Is this lens comes with a silver or regular black ...
Is this lens comes with a silver or regular black plastic lens cap ?
It comes with this black cap Leica Lens Cap for 35mm f/2.0 (#11879) & 50mm f/2.0 (#11826, 11816) M-Lenses
B&H # LELC39M
MFR # 14038
Date published: 2021-08-20
question
Is the silver version really the same weight as the black version?
The Black and Silver Leica APO-Summicron-M 50mm f/2 ASPH Lenses will be the same.
Date published: 2022-07-03
question
Why is this lens more expensive than the Summilux F1.4?
The apochromatic element in the Leica APO-Summicron-M 50mm f/2 ASPH. Lens allows it to have greater sharpness and fewer aberrations. That increases the price when compared with lenses that do not have the apochromatic lens element.
Date published: 2025-08-28
If I shoot monochrome, do I need the extra color ...
If I shoot monochrome, do I need the extra color correction for chromatic aberrations?
I think the reply from staff member Stephen is fundamentally wrong. White light consists of all colors. So, even though you are shooting BW, fringing of colors will occur in case of using a non-APO lens. Therefore, the performance of an APO lens will improve sharpness of a BW image.
Date published: 2023-12-13
is this lens weather/dust sealed?
is this lens weather/dust sealed?
No, the Leica APO-Summicron-M 50mm f/2 ASPH. Lens offers no weather sealing.
Date published: 2023-04-16
Can I use a polarized filter on this lens? There ...
Can I use a polarized filter on this lens? There seems to be no where to screw it on.
Yes, you can use a polarizing filter on all Leica M lenses, including this one.
Date published: 2025-04-01