page_title: Nikkor
section_title: EL-Nikkor
hierarchical_section_title: Nikkor / Products / Photographic enlarging lenses / EL-Nikkor
caption_attribution_description: English: Nikon EL-NIKKOR 68mm F3.5 No.740051 日本語: Nikon EL-NIKKOR 68mm F3.5 No.740051
context_page_description: Nikkor is the brand of lenses produced by Nikon Corporation, including camera lenses for the Nikon F-mount.
  The Nikkor brand was introduced in 1932, a Westernised rendering of an earlier version Nikkō, an abbreviation of the company's original full name Nippon Kōgaku. In 1933, Nikon marketed its first camera lens under the Nikkor brand name, the "Aero-NIKKOR," for aerial photography.
  Nikon originally reserved the Nikkor designation for its highest-quality imaging optics, but in recent history almost all Nikon lenses are so branded.
  Notable Nikkor branded optics have included:
  F-mount lenses for 35mm SLR and DSLR photography.
  1 mount lenses for Nikon CX format currently used by Nikon 1 series.
  Lenses for Bronica and Plaubel Makina medium format cameras.
  Lenses for Nikon S-series and Leica rangefinder cameras
  Amphibious lenses for Nikonos underwater cameras
  Lenses for large format photography.
  EL-Nikkor photographic enlarger lenses.
  The lens of Canon's first or second camera, the "Hanza Canon."
  Microscope objectives.
  Industrial lenses, including lenses in support of the Japanese war effort during World War II.
context_section_description: The EL-Nikkor series of lenses are designed for photographic enlargers. Most feature 39mm Leica thread mounts, although some feature a 50mm screw mount. Most are 6-element, 4-group designs. Some slower, lower-cost designs (marked †) are 4-element, 3-group designs. Newer versions of these lenses are marked with an "N" (focal lengths to 105mm) or "A" (focal lengths from 135mm). (Per Nikon, Inc. Technical and Service Support (800-645-6689), manufacture and sale of all enlarging lenses has been discontinued.)
  EL-Nikkor 40mmF4
  EL-Nikkor 5cmF2.8/50mmF2.8 (Release of drawing Year : 1956) - M39 Screw Mount.
  EL-Nikkor 5cmF3.5C - "El-NIKKOR-C"
  EL-Nikkor 5cmF3.5 (Release of drawing Year : 1945)
  EL-Nikkor 50mmF4† (Release of drawing Year : 1967) - M39 Screw Mount.
  Helmes 5.5cmF3.5 (Release of drawing Year : 1936) - Tessar Type
  EL-Nikkor 63mmF2.8
  EL-Nikkor 6.3 cm/63mmF3.5(Sale Year : 1966) - M39 Screw Mount.
  EL-Nikkor 68mmF3.5 - M39 Screw Mount.
  EL-Nikkor 75mmF4 †
  EL-Nikkor 80mmF5.6(Sale Year : 1966) - M39 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
  EL-Nikkor 105mmF5.6(Sale Year : 1966) - M39 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
  EL-Nikkor 135mmF5.6(Sale Year : 1966) - M39 Screw Mount & φ45mmP=0.5 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
  EL-Nikkor 150mmF5.6(Sale Year : 1968) - φ53mmP=0.75 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
  EL-Nikkor 180mmF5.6(Sale Year : 1972) - φ62mmP=1 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
  EL-Nikkor 210mmF5.6(Sale Year : 1968) - φ72mmP=1 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
  EL-Nikkor 240mmF5.6(Sale Year : 1972) - φ82mmP=1 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
  EL-Nikkor 300mmF5.6(Sale Year : 1972) - φ100mmP=1 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
  EL-Nikkor 360mmF5.6(Sale Year : 1972) - φ130mmP=1.5 Screw Mount. (Lens Construction 6 elements in 4 groups / Orthometar Type Lens)
caption: EL-Nikkor 68mmF3.5
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