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FED-100 100 mm f/ 6.3 Lens

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FED-100 100 mm f/ 6.3 lens

FED-100 100 mm f/ 6.3 lens

FED-100 100 mm f/ 6.3 lens

Optical design

FED-100 100 mm f/ 6.3 optical design

FED-100 100 mm f/ 6.3 optical design

Format: 35mm rangefinder

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: Other mount

Optical design: 4 element /2 group

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Average price: $128

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
100mmf/6.3f/128 222/7,850/2

Additional information:
  • Focal Length: 100.72 mm 2%
  • Relative aperture 1: 6.3
  • Angular field of view: 22 °
  • Limits iris: 1: 6.3 - 1: 12.5
  • Working distance: 47.8 mm ± 0,2
  • Front focal length: - 139.43 mm
  • Back focal length: 50.93 mm
  • Light transmission coefficient: 0.85
  • The resolving power (in the resulting image "AM" type): in the center - 21 lp / mm; on the edge of the field - 12.5 lines / mm
  • Focus Range: focus on "infinity"
  • Number of lenses: 4
  • Clear aperture of the first surface: 16.0 mm
  • Light diameter of the last surface: 10.0 mm
  • Components:
  • Maximum rim diameter: 50 mm
  • Rim height: 50 mm
  • Bore diameter: 32 mm
  • Landing dimensions for threaded nozzles: JMP 26h0,75
  • Weight: 222 g
Lens FED-100" 6.3 / 100 - fourlenses anastigmat (Figure 1.) Low luminosity. Lens enlightened chemically.
The lens is designed for photographic monitoring devices running on 35-mm photographic film with a frame size of 24 × 30 mm.
Due to the large focal length of the lens used for a variety of shooting distant subjects.
The lens is designed in a special frame (Fig. 2). Socket has aperture ring with the characters, "clear", "cloudy", "cloudy". Iris in the range of 1: 6.3 to 1: 12.5 is made by rotation of the ring. 
The lens is focused on the "infinity".
 
 
 
 

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Posted by: SharkDD   Date of publication: 27.04.2016


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