Additional Information on
Pre-AI era Reflex-Nikkor 2000mm f/11 Lens


Reflex-Nikkor 2000mm f/11 Mirror telephoto lens

A prototype model of this remarkable lens was officially shown at Photokina in 1968 as this MirrorNikkor lens has the longest focal length - 2000mm - which ranked among the lonest focal length of all telephoto lenses in 35mm SLR photography. The magnification is 40 times that of a normal 50mm lens, with an extrremely narrow angle of view 1° 10'. It is of the catadioptric type, with two mirrors and three lenses, which accounts for its fairly compact size. The lens barrel is 598mm long. The lens was supplied with a AY-1 mount which made the lens seemed more like a telescope when the lens is mounted onto it.

Three rotations of a focusing knob will suffice to focus this 2000mm telephoto lens from infinity to 20 meters, the closest range (the
later version introduced in 1975 onwards has improved this to 18m). The focusing knob is located at the right-hand side of the rear end of the lens barrel. Distances appear in a glass-covered window above the knob. This lens features four built-in filters - L39, Y48, 056 and R60 - which move into the optical path at the turn of the knob. The carrying handle incorporates a peepsight to help the photographer pre-spot his subject. The lens mount rotates with click-stops to permit selection of the vertical or horizontal picture format. Other features include a rubber-ringed lens hood built onto the lens and two tripod sockets (one for regular 1/4 in. and the other for 3/8 in. size tripods). A special mounting permits this heavy lens to be turned and tilted readily. The white prototype of this lens has a black ring at the center section which serves no purpose other than improves its cosmetic appearance. A version that finishes in Gray color was believed to have been the first batch of the actual production units but such design was short lived and was reverted back to white colour exterior design at later stages.

Specification and optical construction of the Reflex-Nikkor 2000mm f/11

Focal length:
Maximum aperture: 1:11; Lens construction: 5 elements in 5 groups; Picture angle: 1°10'

Focusing: By means of the focusing knob. In three rotations, covers OO - 20m (OO - 60 ft)
Distance scale: Graduated both in meters and feet up to 20m and 60ft
Aperture scale: f11
Attachment size: 254mm
Filter: Built-in, L39, Y48, 056 and R60

Dimensions: 262mm dia. X 598mm length (10-5/1 6 in. X 23-17/32 in. )
17.5 kg (38.6 lb)
Accessories: Slip-on front cap, rear lenscaptype F (108-00-401), mounting for turning/tilting (108-04-603), wooden case (108-04-303)
Note: Serial number for this version (1970/11) of the lens was believed to have been started from 200111..

Mounting (AY-1): Angle of Elevation: 60° Angle of Depression: 35° Horizontal Turning: Endless
Dimension: 573mm high X 330mm wide (22-9/1 6 in. X 13 in.)
7.5 kg ( 16.5 lb)

Product Code No.for this lens: 108-04-007

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Main Index page of Reflex-Nikkor lenses

Reflex-Nikkor 500mm f/8.0s | Non-AI Reflex-Nikkor 500mm f/8.0 (post-77) | Non-AI Reflex-Nikkor 500mm f/8.0 (Pre-AI)
Reflex-Nikkor 1000mm f/11s | Reflex-Nikkor 1000mm f/11 (Post 77)) | Non-AI Reflex-Nikkor 1000mm f/11 (Pre-AI)
Reflex-Nikkor 2000mm f/11s | Reflex-Nikkor 2000mm f/11 (Post 77) | Reflex-Nikkor 2000mm f/11 (Pre-AI Era)
EARLY Reflex Nikkor 50cm f/5.0, Reflex-Nikkor 10cm f/6.3

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Dedicated Lenses for Nikon F3AF: AF 80mm f/2.8 | AF 200mm f/3.5 EDIF
Depth of Field Control (DC): 105mm 135mm
Medical Nikkor: 120mm 200mm
Reflex-Nikkor Lenses - 500mm 1000mm 2000mm
Others: Noct Nikkor | OP-Nikkor | UV Nikkor 55mm 105mm | Focusing Units | Bellows-Nikkor 105mm 135mm
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Recommended links to understand more technical details related to the Nikkor F-mount and production Serial Number: by: my friend, Rick Oleson by: Hansen, Lars Holst

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Credit: MCLau®, who has helped to rewrite some of the content appeared this site. Chuck Hester® who has been helping me all along with the development of all these Nikon websites; Lars Holst Hansen, 'Hawkeye' who shares the same passion I have; Ms Rissa, Sales manager from Nikon Corporation Malaysia for granting permission to use some of the official content; Ted Wengelaar, Holland who has helped to provide many useful input relating to older Nikkor lenses; Some of the references on production serial numbers used in this site were extracted from Roland Vink's website; Hiura Shinsaku from Nikomat Club Japan. Lastly, to all the good people who has contributed their own expeience, resources or kind enough granted permission to use their images of their respective optic in this site. It is also a site to remember a long lost friend on the Net. Note:certain content and images appeared in this site were either scanned from official marketing leaflets & brochures published by Nikon and/or contribution from surfers who claimed originality of their work for educational purposes. The creator of the site will not be responsible for may discrepancies arise from such dispute except rectifying them after verification. "Nikon", "Nikkormat", "Nippon Kokagu KK" & "Nikkor" are registered tradename of Nikon Corporation Inc., Japan. Site made with an Apple IMac.