Summilux

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Summilux-R II 50 / 1.4
Leica Summilux-R 50mm f / 1.4 lens

Summilux (from the Latin summa lux "highest light") is the name for particularly bright lenses from the Leica brand with an initial aperture of f / 1.4 to f / 1.7. Zoom lenses that achieve this light intensity for at least one focal length are called Vario-Summilux.

Summilux lenses are currently (February 2015) manufactured as interchangeable lenses for the Leica M and the Micro Four Thirds standard as well as permanently installed for the Leica X and various Leica and Lumix compact cameras . The offer includes:

  • Leica M
    • Leica Summilux-M 21 mm f / 1.4 ASPH.
    • Leica Summilux-M 24 mm f / 1.4 ASPH.
    • Leica Summilux-M 28 mm f / 1.4 ASPH.
    • Leica Summilux-M 35 mm f / 1.4 ASPH.
    • Leica Summilux-M 50 mm f / 1.4 ASPH.
  • Micro four thirds
    • Leica DG Summilux 12 mm f / 1.4 Asph.
    • Leica DG Summilux 15 mm f / 1.7 Asph.
    • Leica DG Summilux 25 mm f / 1.4 Asph.
  • Leica X
    • Leica Summilux 23mm f / 1.7 ASPH.
  • compact cameras
    • Leica DC Vario-Summilux 10.9–34 mm f / 1.7–2.8 ASPH.
    • Leica Q Summilux 28 mm f / 1.7 ASPH
Leica Summilux-SL 50 mm 1: 1.4, standard lens for the L-bayonet system
  • Leica SL
    • Leica Summilux-SL 50mm f / 1.4 ASPH.

The lenses marked DG and DC are manufactured by Panasonic under license. Other Summilux lenses were manufactured for the Leica R , among others .

Demarcation

Even more powerful Leica lenses with f / 1.2 or better are referred to as Noctilux , and slightly less powerful lenses with f / 2.0 as Summicron . Leica lenses with an open aperture f / 2.8 are called Elmarit .

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