Leica 21mm f/1.4 Summilux-M ASPH (11647)

The Leica 21mm f/1.4 Summilux-M ASPH (11647) is a fast, ultra-wide prime lens for Leica M-mount cameras, combining a rare f/1.4 maximum aperture at 21mm with ASPH optics for exceptional sharpness across the frame.

Key Specifications

• Focal length: 21mm (fixed prime)
• Maximum aperture: f/1.4
• Minimum aperture: f/16
• Lens type: Wide angle, ASPH (aspherical)
• Optical construction: 10 elements in 8 groups, including 5 elements with anomalous partial dispersion
• Mount: Leica M-mount
• Build: Full metal construction with focus and aperture rings

Who is the Leica 21mm f/1.4 Summilux-M ASPH for?

This lens is built for photographers who refuse to compromise between a wide field of view and low-light capability. Street photographers will appreciate how an f/1.4 aperture at 21mm lets you shoot in dim bars, at night, or in overcast conditions without reaching for flash — the wide angle keeps distortion controlled while the bright maximum aperture keeps shutter speeds usable. Landscape and travel shooters get the immersive, expansive framing that a 21mm focal length delivers, and the fast aperture gives you genuine creative control over depth of field, something most wide-angle lenses simply can't offer. Astrophotographers working with Leica M cameras will find a fast, sharp 21mm prime genuinely capable for capturing stars above a foreground. If you shoot on a Leica M system and want one lens that handles everything from bright daylight architecture to moody after-dark street work, the Summilux-M 21mm is hard to argue with.

Buying a used Leica 21mm f/1.4 Summilux-M ASPH

Picking up a pre-owned Summilux-M 21mm f/1.4 ASPH is a smart move for any Leica M shooter. These lenses hold their build quality and optical performance exceptionally well over time — the all-metal construction means wear is mostly cosmetic. Every second-hand lens at Camera-tweedehands.nl is individually inspected and photographed, so you know exactly what condition you're getting before it arrives. All used lenses come with a minimum 12 months warranty, giving you the same peace of mind as a new purchase. If you're also considering the Leica Super Elmar-M 21mm f/3.4 ASPH as a lighter, smaller alternative, or looking at the Voigtlander 21mm f/1.4 as a more accessible fast 21mm option, the Summilux-M remains a benchmark for optical quality and build in this focal length on M-mount.