Leica Tri-Elmar-M 16-18-21mm f/4 ASPH. Lens with Universal Wide-Angle Viewfinder


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  • Leica M-Mount Lens
  • Aperture Range: f/4 to f/22
  • Two Aspherical Elements
  • Floating Elements System
  • Internal Focusing Design
  • Minimum Focusing Distance: 1.6'
  • Includes Universal Wide-Angle Viewfinder

RM 26,670.00


Leica 11642 Overview

Configured for ultra-wide photography with an M-mount rangefinder camera, the Tri-Elmar-M 16-18-21mm f/4 ASPH. Lens with Universal Wide-Angle Viewfinder from Leica bundles the uniquely versatile three-focal-length lens with the Universal Wide Angle Viewfinder for making more accurate compositions with each focal length position.
  • Tri-Elmar-M 16-18-21mm f/4 ASPH. Lens

    A uniquely versatile super-wide lens, the Tri-Elmar-M 16-18-21mm f/4 ASPH. from Leica allows you to work with three separate focal lengths within one lens. The optical design, which includes a pair of aspherical elements, notably reduces distortion for clean, accurate rendering of interior and architectural subjects, and the aspherical elements also promote a more compact form factor. Seamless switching between 16mm, 18mm, and 21mm focal length positions is possible while retaining a minimum focusing distance of 1.6', and a floating elements design is used to maintain image quality even at close range.
    • Unique three-focal-length lens gives you the option to seamlessly switch between the 16mm, 18mm, and 21mm focal length positions to adjust your field of view.
    • Super wide-angle lens has been designed to notably reduce distortion and field curvature to suit photographing interior and architectural subjects.
    • Two aspherical elements are featured to limit spherical aberrations and improve sharpness and clarity throughout the aperture range and at each focal length setting.
    • An internal manual focusing design is used along with a floating elements system to achieve consistent image quality throughout the focusing range at each focal length, even at the minimum focusing distance of 1.6'.
    • The aspherical elements also contribute to a more compact form factor.
    • The front of the lens is male threaded to accept the included lens hood or an optional 67mm filter holder.
  • Universal Wide-Angle Viewfinder M

    The Leica Universal Wide-Angle Viewfinder M is a shoe-mounted external viewfinder for M-system rangefinder cameras (including M8). This viewfinder offers bright-line frames to match the 16-18-21mm lens. Since the 1.33x conversion factor has to be considered for the M8 digital camera, bright-lines for 21, 24, and 28mm are also included. It can also be used with other fixed lenses that match this range. A parallax compensation dial allows for adjustment of the frame to the focusing distance, in five steps (0.5, 0.7, 1, 2 meter & infinity).

    The use of one aspherical lens element and one with achromatic correction in the viewfinder makes it insensitive to stray light, and provides a high resolution and exceptional brilliance image.
    • An illuminated spirit level helps to keep the camera horizontal even in unfavorable light conditions.
    • Compatible with the R8/R9 series of diopter correction lenses.


  • Tri-Elmar-M 16-18-21mm f/4 ASPH. Lens
    Focal Length 16mm
    Aperture f/4 to f/22
    Camera Mount Type Leica M
    Angle of View 16mm: 107°
    18mm: 100°
    21mm: 92°
    Minimum Focus Distance 1.6' / 50 cm
    Reproduction Ratio 16mm: 1:38
    18mm: 1:35
    21mm: 1:30
    Optical Design 10 elements in 7 groups
    Diaphragm Blades Not specified by manufacturer
    Focus Manual
    Filter Thread N/A (male thread to accept included lens hood or optional 67 mm filter holder)
    Dimensions 2.1 x 2.4" / 54 x 62 mm
    Weight 11.8 oz / 335 g
    Packaging Info
    Box Dimensions (LxWxH) 5.9 x 4.8 x 4.8"
  • Universal Wide-Angle Viewfinder M
    Packaging Info
    Box Dimensions (LxWxH) 4.7 x 4.6 x 2.8"

What's In The Box

1xBundle Items
1xLens Hood for 16-18-21mm Lens
1xLens Hood Cap for Leica Wide-Angle Lenses
1xRear Lens Cap for M-Mount Lenses
1xLeather Pouch
1xUniversal Wide-Angle Viewfinder M


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