Leica Summilux-M 21mm f/1.4 ASPH.

A super fast, ultra wide-angle lens

A versatile performer
The Summilux-M 21mm f/1.4 ASPH. is the first and only lens with this size and lens speed. The outstanding quality, large angles, and compact dimensions make it a versatile performer. It works from full aperture – with an extremely shallow depth of field and a subject separated from the background – to a medium stop which can sharply and effectively reproduce entire scenes.

Technical details
The Summilux-M 21mm f/1.4 ASPH. consists of ten lenses in eight groups and incorporates five separate lenses with anomalous partial dispersion. As a result, vignetting and distortion are both excellently corrected. The floating element retains the lenses’ high resolution, even in the close-up range. A patented, rectangular lens hood fits Series VIII filters.

The essentials:

  • Diagonal angle of view: 92 °
  • Working range: 0.7 m to infinity
  • Biggest scale: 1:29
  • Number of lenses/groups: 10/8
  • Length * 1: 66 mm
  • Weight * 1: 580 g
  • Lens hood: can be screwed on
  • Filter/filter thread: Insertion filter Series VIII in lens hood
  • Made in Germany
Camera System

M System

Colour

Black

Specifications

  • Angle of view (diagonal, horizontal, vertical):

    92° / 81° / 59°

  • Optical design

  • Number of lenses/groups:

    10 / 8

  • Focal length:

    21.6 mm

  • Position of entrance pupil:

    24.4 mm (related to the first lens surface in light direction)

  • Focusing range:

    0.7 m to infinity

  • Distance setting

  • Scales:

    Combined meter/feet graduation

  • Smallest object field:

    685 x 1027 mm

  • Largest reproduction ratio:

    1:29

  • Aperture

  • Setting/Function:

    With click-stops, half values available, manual diaphragm

  • Lowest value:

    16

  • Bayonet:

    Leica M quick-change bayonet with 6 bit lens identification bar code for digital M models

  • Filter mount:

    Series filter VIII in lens hood

  • Lens hood:

    Seperate, screw-on type

  • Dimension and weight

  • Length:

    66 / 77 mm (without / with lens hood)

  • Largest diameter:

    Approx. 69.5 mm

  • Weight:

    Approx. 580 g

What's in the Box

  • Leica Summilux-M 21mm f/1.4 ASPH. Lens
  • Leica Lens Hood for 21mm f/1.4 Summilux-M Lens
  • Leica Lens Hood Cap for the 21mm f/1.4 Summilux-M Aspherical Lens
  • Leica Rear Lens Cap for M-Lenses