Engineering:Summilux

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Leica Summilux-M 50 mm f/1.4 Version 2 (1961 – 1968)
Leica Summilux 35 mm f/1.4 Version 1
Optical Diagram of Leica Summilux-R 50mm f/1.4 II lens.

The name Summilux is used by Leica and Panasonic Lumix to designate camera lenses that have a maximum aperture of less than f/2, typically f/1.4, but greater than f/1.0. The lens has been in production since 1959 and carries on to the present day.

History

The name Summilux is a combination of Summum, which is the Latin word for highest, while Lux is for light.[1] The first Summilux was the 50 mm of 1959, followed by a new 50 mm Summilux design in 1961, whose optics remained unchanged until replaced by the 50 mm Summilux-M ASPH of 2004. [2]

Description

The Summilux lenses have a maximum f-number of f/1.4, f/1.5 or occasionally f/1.7. This one to 1.5 stops lower than Leica's Noctilux lenses, but the Summilux lenses are smaller as a result.[1] Summilux lenses are designed for low-light photography.

Market position

The Summilux lenses are less expensive than the Noctilux lenses, which has a smaller f-number.[1] However they are bigger, heavier and more expensive than the Summicron.

List of Summilux lenses

For the Leica M mount
  • Summilux-M 21 mm f/1.4 ASPH.[3]
  • Summilux-M 24 mm f/1.4 ASPH.[4]
  • Summilux-M 28 mm f/1.4 ASPH.[5]
  • Summilux 35 mm f/1.4[6]
  • Summilux-M 35 mm f/1.4 ASPH. FLE Version V[7]
  • Summilux-M 35 mm f/1.4 ASPH. FLE "Short Focus" Version VI[8]
  • Summilux 50 mm f/1.4[9]
  • Summilux-M 50 mm f/1.4 ASPH.[10]
  • Summilux-M 75 mm f/1.4[11]
  • Summilux-M 90 mm f/1.5 ASPH.[12]
For the Leica R mount
  • Summilux-R 35 mm f/1.4[13]
  • Summilux-R 50 mm f/1.4 1st version[13]
  • Summilux-R 50 mm f/1.4 2nd version[13]
  • Summilux-R 50 mm f/1.4 3rd version – 1997 (ROM contacts)[13]
  • Summilux-R 80mm f/1.4[13]
For the Leica L Mount
  • Summilux-TL 35 mm f/1.4 ASPH.[14]
  • Summilux-SL 50 mm f/1.4 ASPH.[15]
For the Four Thirds mount[a 1]
For the Micro Four Thirds mount[a 1]
  • Panasonic Leica DG Vario-Summilux 10-25 mm f/1.7 ASPH.[16]
  • Panasonic Leica DG Summilux 12 mm f/1.4 ASPH.[17]
  • Panasonic Leica DG Summilux 15 mm f/1.7 ASPH.[18]
  • Panasonic Leica DG Summilux 25 mm f/1.4[19]
  • Panasonic Leica DG Summilux 25 mm f/1.4 II ASPH.[20]
  1. ↑ 1.0 1.1 manufactured under license by Panasonic

References

  1. ↑ 1.0 1.1 1.2 Taylor, David (2014). Leica M Typ 240 Expanded Guide. United Kingdom: Ammonite Press. ISBN 978-1781450390. 
  2. ↑ Winchester, Simon (2018). "The perfectionists: how precision engineers created the modern world". Science 360 (6396): 226–229. doi:10.1126/science.aau3874. Bibcode: 2018Sci...360.1408.. 
  3. ↑ "Summilux-M 21mm f/1.4 ASPH. // M-Lenses // Leica M-System // Photography - Leica Camera AG". https://us.leica-camera.com/Photography/Leica-M/M-Lenses/Summilux-M-21mm-f-1.4-ASPH. 
  4. ↑ "Summilux-M 24mm f/1.4 ASPH. // M-Lenses // Leica M-System // Photography - Leica Camera AG". https://us.leica-camera.com/Photography/Leica-M/M-Lenses/Summilux-M-24mm-f-1.4-ASPH. 
  5. ↑ "Summilux-M 28mm f/1,4 ASPH. // M-Lenses // Leica M-System // Photography - Leica Camera AG". https://us.leica-camera.com/Photography/Leica-M/M-Lenses/Summilux-M-28mm-f-1,4-ASPH. 
  6. ↑ "LEICA SUMMILUX 35mm f/1.4 (1961-1995)". https://www.kenrockwell.com/leica/35mm-f14.htm. 
  7. ↑ "Summilux-M 35mm f/1.4 ASPH. // M-Lenses // Leica M-System // Photography - Leica Camera AG". https://us.leica-camera.com/Photography/Leica-M/M-Lenses/Summilux-M-35mm-f-1.4-ASPH. 
  8. ↑ "Leica 35mm Summilux History". https://www.overgaard.dk/leica-35mm-Summilux-M-ASPH-f-14.html. 
  9. ↑ "LEICA SUMMILUX 50mm f/1.4 (1960-2004)". https://www.kenrockwell.com/leica/50mm-f14.htm. 
  10. ↑ "Summilux-M 50mm f/1.4 ASPH. // M-Lenses // Leica M-System // Photography - Leica Camera AG". https://us.leica-camera.com/Photography/Leica-M/M-Lenses/Summilux-M-50mm-f-1.4-ASPH. 
  11. ↑ "75mm f/1.4 Summilux-M - Leica Wiki (English)". http://www.l-camera-forum.com/leica-wiki.en/index.php/75mm_f/1.4_Summilux-M. 
  12. ↑ "Leica Extends Summilux-M Series with 90mm f/1.5 Lens" (in en). https://www.bhphotovideo.com/explora/photography/news/leica-extends-summilux-m-series-with-90mm-f15-lens/bi/2446/kbid/3285/kwid/ez. 
  13. ↑ 13.0 13.1 13.2 13.3 13.4 Puts, Erwin (July 2003). Leica R-Lenses. http://www.summilux.net/perso/teiki%20arii/Leica_R_lenses.pdf. 
  14. ↑ "Leica Summilux-TL 35mm F1.4 ASPH: Digital Photography Review". https://www.dpreview.com/products/leica/lenses/leica_tl_35_1p4_asph. 
  15. ↑ "Leica Summilux-SL 50mm F1.4 ASPH: Digital Photography Review". https://www.dpreview.com/products/leica/lenses/leica_sl_50_1p4_asph. 
  16. ↑ "Panasonic Leica DG Vario-Summilux 10-25mm F1.7 ASPH: Digital Photography Review". https://www.dpreview.com/products/panasonic/lenses/panasonic_10-25_1p7_asph. 
  17. ↑ "Panasonic Lumix G Leica DG Summilux 12mm F1.4 ASPH: Digital Photography Review". https://www.dpreview.com/products/panasonic/lenses/panasonic_12_1p4. 
  18. ↑ "Panasonic Leica DG Summilux 15mm F1.7 ASPH: Digital Photography Review". https://www.dpreview.com/products/panasonic/lenses/panasonic_15_1p7. 
  19. ↑ "Panasonic Leica Summilux DG 25mm F1.4: Digital Photography Review". https://www.dpreview.com/products/panasonic/lenses/panasonic_25_1p4. 
  20. ↑ "Panasonic Leica DG Summilux 25mm F1.4 II ASPH: Digital Photography Review". https://www.dpreview.com/products/panasonic/lenses/panasonic_leica_dg_25_1p4_ii_asph. 

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