Cooke Telepanchro 4/317mm

The Cooke Telepanchro 4/317mm lens is purposed for usual film shots.

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Specification of Cooke Telepanchro 4/317mm  

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Manufacturer \"Rank, Taylor & Hobson\" (England)
Lens system -
Focal lengthf\'318.1 mm
Angle of view2ω\'4°55\'
Effective relative aperturef:nэ1:4.2
Lens lengthΣd156 mm
Front focal lengthS-483.8 mm
Back focal lengthS\'103.2 mm
Flange focal distanceZ52.1 mm
Block lengthB228 mm
Block max. diameterD108 mm
Rear diameterD\'41 mm
Front element diameterd179.5 mm
Rear element diameterd233.4 mm
Mount thread -
Distance from rear end of the housing
to the focal plane
l33 mm
Aperture blades quantity ?
Frame size 16x22 mm
Weight 2.4 kg
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