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Leica Summicron-R 50 mm f/2 II 'Safari' edition from 1978.
Leica Summicron-R 50 mm f/2 II 'Safari' edition from 1978.
Leica APO Summicron-M 50 mm f/2.
Leica APO Summicron-M 50 mm f/2.
Leica Summicron-M 50 mm f/2 from 1960.
Leica Summicron-M 50 mm f/2 from 1960.

The name Summicron is used by Leica to designate camera lenses that have a maximum aperture of f/2 after 1953 and to present day.

History

The name Summicron is derived from summus, latin word for maximum and kronos, the ancient Greek word for time. In the 1950s Leica bought Crown glass from Chance Brothers, an English company and used it to make the lenses.[1]

Leica designed a number of f/2 lenses before the Summicron, such as the Summar and Summitar. New coating technologies available after World War II allowed for the creation of the Summicron lens. The first Summicron was an evolved Summitar collapsible 50mm with Lanthanum glass, and was launched in 1953.[2] Generations before approximately 1960 were produced in M39 mount ("screw mount"), then made available in M-mount (Latch-on A42), R-mount, and C-mount.[2]

Description

The Summicron lenses have a maximum f-number of f/2.[1]

Market position

Faster Leica lenses are offered with the trade names Noctilux (or Nocticron) and Summilux. Summarit, Elmarit, and Elmar lenses are slower.

List of Summicron lenses

This list is incomplete; you can help by adding missing items. (November 2019)
For the M39 lens mount
For the Leica M mount
For the Leica R mount
For the Leica S mount
For the Leica L Mount
For the Leica L Mount Cine lens

References

  1. ^ a b Taylor, David (2014). Leica M Typ 240 Expanded Guide. United Kingdom: Ammonite Press. ISBN 978-1781450390.
  2. ^ a b Rockwell, Ken (June 2014). "Leica Summicron 50mm Guide". KenRockwell.com. Retrieved 2019-06-14.
  3. ^ "Leica Summicron-M 28mm f/2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  4. ^ "Leica Summicron-M 35mm f/2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  5. ^ "Leica Summicron-M 50mm f/2: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  6. ^ "Leica APO-Summicron-M 50mm f/2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  7. ^ "Leica APO-Summicron-M 75mm f/2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  8. ^ "Leica APO-Summicron-M 90mm f/2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  9. ^ "Leica APO-Summicron-SL 35mm F2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  10. ^ "Leica APO-Summicron-SL 50mm F2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  11. ^ "Leica APO-Summicron-SL 75mm F2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.
  12. ^ "Leica APO-Summicron-SL 90mm F2 ASPH: Digital Photography Review". www.dpreview.com. Retrieved 2020-03-10.