User manual
Leica Tri-Elmar-M 16-18-21mm f 4 ASPH.

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

• Product category: Rangefinder Lenses Leica
• Brand: Leica
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Leica Rangefinder Lenses

Product description

• 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.
  UPC: 799429120115

• Lens Hood for 16-18-21mm Lens

• Lens Hood Cap for Leica Wide-Angle Lenses

• Rear Lens Cap for M-Mount Lenses

• Leather Pouch

• Limited 3-Year Warranty

• 2-Year Warranty

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Technical parameters

• Tri-Elmar-M 16-18-21mm f/4 ASPH. Lens

  Focal Length	16mm 18mm 21mm
  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

  Box Dimensions (LxWxH)	5.9 x 4.8 x 4.8"

• Universal Wide-Angle Viewfinder M

  Box Dimensions (LxWxH)	4.7 x 4.6 x 2.8"

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