Entries by Christophe Zumstein

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Canon 12×32 IS

Specifications: Objective diameter:  32 mm Magnification:  12 x Exit pupil: 2.67 mm Eye relief (acc. to spec): 14.5 mm Usable eye relief (measured from rim of eyecup): 12.5 mm IPD: 56  – 76 mm RFOV:  5.0  degrees = 87 m AFOV (according to spec.): 55.3 degrees Minimum focus distance (measured): 1.75 m Focus type:  CF […]

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Vixen SG 2.1×42

Specifications: Objective diameter:  42 mm Magnification:  2.1 x Exit pupil: N.A. Eye relief (acc. to spec):  “8.4 mm” IPD: 55  – 74 mm RFOV (acc. to spec):  “26 degrees” Focus type:  IF (direction of rotation from close to infinity: > clockwise) Range of diopter adjustment (estimate): +2.5 /- 4 dpt Prism system:  none (Galilean) Waterproof: […]

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Kasai Trading “Rusinov” 2.3×40

Specifications: Objective diameter:  40 mm Magnification:  2.3 x Exit pupil:  —- IPD:  59 –  74 mm RFOV:  “28  degrees” Focus type:  IF (direction of rotation from close to infinity: > clockwise) Range of diopter adjustment (estimate): +/- 4.5 dpt* Prism system:  none (Galilean) Waterproof: no Weight (measured, with eyepiece cover and strap): 265 g Made […]

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Nikon 4×10 DCF

Specifications: Objective diameter:  10 mm Magnification:  4 x Exit pupil: 2.5 mm Eye relief (acc. to spec): 13.7 mm Usable eye relief (measured from rim of eyecup): 10.5 mm IPD: 57  – 72 mm RFOV:  10.0  degrees = 175 m AFOV (measured, rounded): 40 degrees Minimum focus distance (measured): 1.25 m Focus type:  CF (direction […]

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Nikon 5×15 DCF

Specifications: Objective diameter:  15 mm Magnification:  5 x Exit pupil: 3 mm Usable eye relief (measured from rim of eyecup): 13.5 mm IPD:  56 – 71 mm RFOV:  9.0  degrees = 157 m AFOV (measured, rounded): 45 degrees Minimum focus distance (measured): 0.95 m Focus type:  CF (direction of rotation from close to infinity: > […]

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Nikon Mikron 6×15 CF

Specifications: Objective diameter:  15 mm Magnification:  6 x Exit pupil: 2.5 mm IPD:  57 – 84 mm Usable eye relief (measured from rim of eyecup): 10 mm RFOV:  8.0  degrees = 140 m AFOV (measured, rounded): 49 degrees Minimum focus distance (measured): 2.0 m Focus type:  CF (direction of rotation from close to infinity: > […]

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KOMZ BPC 6×24

Specifications: Objective diameter:  24 mm Magnification:  6 x Exit pupil: 4 mm IPD: 42  – 73 mm Usable eye relief (measured from rim of unfoldable eyecup): 5.5 mm RFOV:  11.4  degrees = 200 m AFOV (measured, rounded): 63.5 degrees Minimum focus distance (measured): 3 m Focus type:  CF (direction of rotation from close to infinity: […]

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Kern Pizar 6×24 AR

Specifications: Objective diameter:  24 mm Magnification:  6 x Exit pupil: 4 mm Usable eye relief (measured from rim of eyecup): 4.5 mm IPD: 43  – 71 mm RFOV:  7.0  degrees = 120 m AFOV (measured, rounded): 46 degrees Minimum focus distance (measured): 3.4 m Focus type:  CF (direction of rotation from close to infinity: < […]

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Swarovski Habicht 6×30

Specifications: Objective diameter:  30 mm Magnification:  6 x Exit pupil: 5 mm IPD: 48  – 74 mm Usable eye relief (measured from rim of eyecup): 12 mm RFOV:  8.5  degrees = 150 m AFOV (measured, rounded): 51 degrees Minimum focus distance (measured): 2.9 m Focus type:  CF (direction of rotation from close to infinity: > […]

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Kern 6×30 Swiss Army

Specifications: Objective diameter:  30 mm Magnification:  6 x Exit pupil: 5 mm Usable eye relief (measured from rim of eyecup): 4.5 mm IPD: 45  – 71 mm RFOV (measured): 8.4  degrees =  147 m AFOV (measured, rounded): 50 degrees Minimum focus distance (measured): 3.4 m Focus type:  IF Prism system:  Porro I Waterproof: yes ? […]