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Lenses and Extension tubes for Nikonos systems
 
Lenses for Nikonos systems
Lens 80 mm 35 mm 25 mm 20 mm 15 mm
Max. aperture 4 2,5 3,5 2,8 2,8
Min. aperture 22 22 22 22 22
Angle() 12 43 59 78 94
Minimal distance (m) 1 0,8 0,6 0,4 0,3
Minimal distance (ft) 3,3 2,6 2 1,3 1
Lens number 5 7 6 9 12
Group number 5 5 5 7 9
 
Extension tubes
Brand Product name Reproduction ratio Extension tubes size
mm
Lens focus distance
mm
 (*)
 (*) Image (*)
L mm H mm L mm H mm
Nikonos Yellow 1:2 19 180 58 39 - -
Nikonos Red 1:1 42 163 28 19 - -
Nikonos Yellow+Red 2:1 61 172 - - - -
Ikelite 4090.11 1:1 - - - - - -
Ikelite 4090.12 1:2 - - - - - -
Ikelite 4090.13 1:3 - - - - - -
Sea and Sea 35M-1 1:1 - - 35.4 24.3 - -
Sea and Sea 35M-2 1:2 - - 70.8 48.1 - -
Sea and Sea 28M-2 1:2 - - 63.2 43.0 - -
Sea and Sea 35M-3 1:3 - - 101.2 70.8 - -
Immasub n1 1:2 18 190.7 78 51 69.84 46.54
Immasub n2 1:1 30 166.4 48 32 41.76 27.84
 
Notes :

- (*) : Measured value.

- Italic : Constructor value

- Extension tubes size : Pulling measurement in mm. Measure the extension tube size without the o-ring groove. See above picture.


- Lens focus distance : The focus distance must be measured from the film plan. A mark located under the advance lever, beside the serial number, indicate the film plan. See above picture. You have to measure the distance between the film plan and the framer.


 

 

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