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Leica Super-Elmar-M 21mm f/3.4 ASPH. Lens

The Leica 21mm f/3.4 ASPH. is a 21mm f/3.4 lens designed for Leica M mount cameras. Used copies start from $2,360.28 on GearFocus, with buyer protection on every purchase.

Leica Super-Elmar-M 21mm f/3.4 ASPH. Lens

Leica Super-Elmar-M 21mm f/3.4 ASPH. Lens

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Lens OverviewLeica 21mm f/3.4 ASPH.

The Leica Super-Elmar-M 21mm f/3.4 ASPH. is a wide-angle prime lens built for the Leica M-mount system, covering a full-frame image circle. With a fixed 21mm focal length, it sits firmly in wide-angle territory, making it well-suited for landscape, architectural, and street photography where a broad field of view is essential. The lens is a manual focus design, consistent with the rangefinder shooting experience that Leica M-mount cameras are built around.

At f/3.4, the maximum aperture is modest but practical for a lens of this focal length and physical size. Speaking of size, the lens weighs just 279g, which makes it a genuinely compact and travel-friendly option that won't overwhelm the compact body of an M-mount camera. It accepts 46mm filters, a relatively small thread size that reflects the lens's slim profile.

Image stabilization is not present, which is expected for a manual-focus rangefinder prime. The lens is classified as compatible with mirrorless camera systems via the Leica M mount, meaning it can also be adapted to a range of mirrorless platforms that support M-mount glass. For photographers committed to the deliberate, tactile process of manual focusing, this lens offers a well-matched pairing with the Leica M shooting philosophy.

Key FeaturesLeica 21mm f/3.4 ASPH.

21mm Full-Frame Prime: Fixed 21mm focal length covers a full-frame image circle, delivering a wide field of view without crop factor limitations on Leica M-mount cameras.

Aspherical Optical Design: ASPH. element corrects spherical aberration and distortion, contributing to edge-to-edge sharpness across the wide-angle frame.

Leica M Mount: Designed for Leica M-mount rangefinder cameras and adaptable to a wide range of mirrorless systems with an appropriate M-mount adapter.

Manual Focus Operation: Matches the deliberate rangefinder shooting workflow of Leica M cameras, with a focus ring suited to precise manual control.

f/3.4 Maximum Aperture: Modest but practical maximum aperture keeps the lens compact and lightweight while remaining usable in a variety of lighting conditions.

279g Compact Build: Lightweight construction makes it a practical travel and street photography lens that complements the slim profile of M-mount bodies.

Lens SpecificationsLeica 21mm f/3.4 ASPH.

Leica 21mm f/3.4 ASPH. full specifications
SpecDetail
Use CasesTravel, Documentary
Lens TypeWide-Angle
FormatFull Frame
Zoom/PrimePrime
Focal Length21mm
Maximum Aperturef/3.4
Camera SystemMirrorless
Lens MountLeica M
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread46mm

DescriptionLeica 21mm f/3.4 ASPH.

The Leica Super-Elmar-M 21mm f/3.4 ASPH. is a prime, wide-angle lens built around the Leica M mount, delivering full-frame coverage for photographers working with M-mount rangefinder and compatible mirrorless systems. The fixed 21mm focal length places this lens firmly in wide-angle territory, ideal for capturing expansive scenes with consistent framing. With a maximum aperture of f/3.4, the lens balances light-gathering capability with a compact physical footprint.

Weighing just 279g and using a 46mm filter thread, it is one of the more travel-friendly options available for the M-mount system. Focus is entirely manual, aligning with the deliberate, hands-on shooting style that defines the Leica M experience. There is no image stabilization, so shooting technique matters when working in challenging light.

For photographers invested in the Leica M ecosystem who want a reliable, lightweight wide-angle prime, the Super-Elmar-M 21mm f/3.4 ASPH. presents a compact and purpose-built option.

ProsLeica 21mm f/3.4 ASPH.

  • Lightweight at just 279g, making it easy to carry for extended shoots
  • Compact 46mm filter thread reflects the lens's slim, unobtrusive form factor
  • Full-frame coverage suits Leica M-mount cameras without crop limitations

ConsLeica 21mm f/3.4 ASPH.

  • Maximum aperture of f/3.4 is relatively modest, limiting performance in lower light compared to faster wide-angle primes
  • No image stabilization, so handheld shooting in dim conditions relies entirely on technique
  • Manual focus only — not suitable for photographers who require or prefer autofocus operation

Resources & DownloadsLeica 21mm f/3.4 ASPH.

Manuals & Guides

Frequently Asked QuestionsLeica 21mm f/3.4 ASPH.

What camera mount does this lens use?+
This lens uses the Leica M mount. It is designed for full-frame coverage and is listed as compatible with mirrorless camera systems that support the M mount.
Does this lens have autofocus?+
No, this lens is manual focus only. It is built around the rangefinder-style manual focusing experience typical of Leica M-mount optics.
What filter size does this lens accept?+
The lens has a 46mm filter thread, which is a relatively small size consistent with the lens's compact physical profile.
Does this lens have image stabilization?+
No, image stabilization is listed as None in the specifications. Steady shooting will depend on technique or in-body stabilization if the camera body supports it.
Is this lens suitable for full-frame cameras?+
Yes, the lens format is specified as full frame, meaning it provides complete coverage for full-frame Leica M-mount cameras without vignetting due to sensor size.
How heavy is this lens?+
The lens weighs 279g, making it a compact and lightweight option that pairs well with the slim profile of Leica M-mount camera bodies.

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