Entries by Christophe Zumstein

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Nikon 10×70 IF HP WP

Specifications: Objective diameter:  70 mm Magnification:  10x Exit pupil: 7 mm Eye relief (acc. to spec): 15 mm Usable eye relief (mesured from rim of unfoldable eyecup): 6.5 mm IPD:  56 – 72 mm RFOV:  5.1  degrees = 89 m AFOV (measured, rounded):   50 degrees Minimum focus distance (estimate): ca. 13 m Focus type:  […]

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Vixen Atera H 12×30

Specifications: Objective diameter:  30 mm Magnification:  12x Exit pupil: 2.5 mm Eye relief (acc. to spec): 17.5 mm Usable eye relief (measured from rim of eyecup): 15 mm IPD:  55 – 75 mm RFOV:  4.2  degrees = 73 m AFOV (measured, rounded):   47.5 degrees Minimum focus distance (measured): 2.4 m Focus type:  CF (direction […]

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Canon 12×36 IS III

Specifications: Objective diameter:  36 mm Magnification:  12x Exit pupil: 3.0 mm Eye relief (acc. to spec): 14 mm Usable eye relief (measured from rim of eyecup): 15.5 mm IPD: 56  –  74 mm RFOV:  5.0  degrees = 97.5 m AFOV (measured, rounded):   59.5 degrees Minimum focus distance (according to spec.): “ca 6 m” Minimum […]

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Zeiss Conquest 12×45 T*

Specifications: Objective diameter:  45 mm Magnification:  12x Exit pupil: 3.75 mm Eye relief (acc. to spec): 15 mm Usable eye relief (measured from rim of eyecup): 13.5 mm IPD:  54 – 74 mm RFOV:  4.6  degrees = 80 m AFOV (measured, rounded):   55 degrees Minimum focus distance (measured): 4.85 m Focus type: CF (direction […]

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Meopta MeoStar B1 12×50 HD

Specifications: Objective diameter:  50 mm Magnification:  12x Exit pupil: 4.17 mm Eye relief (acc. to spec): 15 mm Useful eye relief (measured form rim of eyecup): 12mm IPD:  56 – 74 mm RFOV:  5.2  degrees = 91 m AFOV (measured, rounded):   62 degrees Minimum focus distance (measured): 3.4 m Focus type: CF (direction of […]

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Meopta MeoStar B1 12×50

Specifications: Objective diameter:  50 mm Magnification:  12x Exit pupil: 4.17 mm Eye relief (acc. to spec): 15 mm Useful eye relief (measured form rim of eyecup): 12mm IPD:  56 – 74 mm RFOV:  5.2  degrees = 91 m AFOV (measured, rounded):   62 degrees Minimum focus distance (measured): 3.4 m Focus type: CF (direction of […]

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Leica Trinovid 12×50 BA

Specifications: Objective diameter:  50 mm Magnification:  12 x Exit pupil: 4.17 mm Eye relief (according to spec.): 24 mm Useable eye relief (measured from rim of eyecup): 11.5 mm IPD: 58  – 73 mm RFOV:  5.7  degrees = 100 m AFOV (measured, rounded):   68 degrees (!) Minimum focus distance (measured): 4.35 m Focus type: […]

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Kite Ibis 12×50 ED

Specifications: Objective diameter:  50 mm Magnification:  12 x Exit pupil: 4.17 mm Eye relief (acc. to spec): 16 mm Usable eye relief (measured from rim of eyecup): 14.5 mm IPD:  55 – 73 mm RFOV:  5.2  degrees = 91 m AFOV (measured, rounded):  62.5  degrees Minimum focus distance (measured): 2.7 m Focus type: CF (direction […]

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Fujinon 12×60 HB

Specifications: Objective diameter:  60 mm Magnification:  12 x Exit pupil: 5 mm Eye relief (acc. to spec): 15 mm Usable eye relief (measured from rim of eyecup): 12 mm IPD:  56 – 74 mm RFOV:  5 degrees = 87 m AFOV (measured, rounded): 59 degrees Minimum focus distance (measured): 3.85 m Focus type: CF (direction […]

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Leica Duovid 10x/15×50

Specifications: Objective diameter:  50 mm Magnification:  15 x /10 x Exit pupil: 3.33 mm / 5 mm Eye relief (acc. to spec): 14.5 mm Useful eye relief (measured from rim of eyecup): 11.5 mm IPD:  59 – 74 mm RFOV:  5.3 / 4.0  degrees = 92 m / 70 m AFOV (measured, rounded, for 10x […]