Leica·CW ID: 846·MFR ID: N/A

M 16-18-21 f4.0 ASPH

Name: Leica M 16-18-21 f4.0 ASPH
Brand: Leica
SKU: 846
Price: 7055.0 USD
Availability: OutOfStock

$7,055.00

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Brand Leica System Leica M

The Tri-Elmar-M 16-18-21mm f/4 ASPH — the legendary WATE — packs three ultra-wide focal lengths into a single, beautifully compact M lens. A mechanical switch clicks between 16, 18, and 21 mm, and a coded focal-length link tells digital M bodies which framelines to activate, so composition stays intuitive.

Ten elements in seven groups, two aspherical surfaces, and a floating element keep distortion low and edges crisp from close focus to infinity. Built entirely of metal and paired ideally with a wide-angle or digital viewfinder, it's the architecture, interior, and landscape specialist for the M system. Talk to our team about the right finder to complete your kit.

Buy from an authorized Leica dealer like Leica Store SF to ensure a genuine product with full manufacturer warranty and expert support.

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Three focal lengths in one: 16, 18, and 21 mm
Fixed f/4 speed for a compact, well-balanced design
Optical system of 10 lenses in 7 groups
Two aspherical surfaces plus specialized glass for consistent performance
Floating element maintains sharpness at close range
Mechanical focal-length switch with distinct click-stops
Coded switch auto-activates matching framelines on digital M bodies
Leica M bayonet with 6-bit encoding
Click-stop diaphragm with half-increment settings
Minimal distortion, strong edge sharpness, even illumination
All-metal construction for durability
E67 filter thread with screw-on hood

Scope of Delivery:

Leica Tri-Elmar-M 16-18-21mm f/4 ASPH lens
Screw-on lens hood
Front lens cap
Rear lens cap

Limited Warranty:

Your Leica lens is covered by Leica's limited warranty from the date of purchase at an authorized Leica dealer, and registering a Leica Account may extend your coverage. Purchasing from an authorized dealer such as Leica Store SF ensures a genuine, warranty-eligible product backed by Leica's official service network.

General

Lens: Leica Tri-Elmar-M 16-18-21mm f/4 ASPH

Order number: 11642

Angle of view (diagonal): 16mm: 107° / 18mm: 100° / 21mm: 92°

Bayonet: Leica M bayonet with 6-bit encoding

Filter thread: E67

Lens hood: Screw-on

Optical Design

Number of lenses/groups: 10/7

Aspherical surfaces: 2

Focusing

Focus range: 0.5 m to infinity

Scale: Combined meter/feet

Smallest object field: 16mm: 915 x 1373 mm / 21mm: 725 x 1087 mm

Largest reproduction ratio: 16mm 1:38 / 21mm 1:30

Aperture

Setting: Click-stop diaphragm with half-increment settings

Smallest aperture: f/22

Dimensions

Length: Approx. 66 mm

Diameter: Approx. 54 mm

Weight: Approx. 335 g

Learn More

Three Focal Lengths, One Lens

Switch mechanically between 16, 18, and 21 mm with a distinct click-stop. The coded focal-length switch communicates with digital M cameras and automatically activates the corresponding viewfinder framelines, so you compose without guesswork.

Ultra-Wide Optical Precision

A system of 10 lenses in 7 groups with two aspherical surfaces and premium specialized glass delivers high performance at every setting. A floating element compensates for close-range softness, keeping distortion minimal and edges sharp across the frame.

Built Like a Leica Tool

All-metal construction gives exceptional robustness in a remarkably small package. The E67 filter thread accepts a screw-on hood, and pairing the lens with a digital or external wide-angle viewfinder unlocks its full creative potential.

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