Entries by Christophe Zumstein

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Canon 8×20 IS

Specifications: Objective diameter:  20 mm Magnification:  8 x Exit pupil: 2.5 mm Eye relief (acc. to spec): 13.5 mm IPD:  56 – 72 mm RFOV:  6.6  degrees = 115 m AFOV:  49.5 degrees Focus type:  CF Prism system:  Porro I Waterproof: no Weight (measured, with eyepiece cover and objective caps): 459 g Made in: Taiwan […]

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Steiner BluHorizons 8×22

Specifications: Objective diameter:  22 mm Magnification:  8 x Exit pupil: 2.75 mm Useful eye relief (measured from rim of eyecup): 12 mm IPD: 42 – 72 mm RFOV:  7.1  degrees = 125 m Focus type:  CF Prism system:  Schmidt-Pechan Waterproof: yes Weight (measured, with eyepiece cover and strap): 325 g Made in: Germany (??)    […]

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Nikon EDG 8×32

Specifications: Objective diameter:  32 mm Magnification:  8 x Exit pupil: 4 mm Eye relief (acc. to spec): 18.5 mm IPD: 54  –  76 mm RFOV:  7.8  degrees = 136 m AFOV: 57.2 degrees Focus type:  CF Prism system:  Schmidt-Pechan Waterproof: yes Weight (measured, with eyepiece cover and strap): 748 g Made in: Japan    Remarks: […]

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Kowa BD II 8×42 XD

Specifications: Objective diameter:  42 mm Magnification:  8 x Exit pupil: 5.25 mm Eye relief (acc. to spec): 17 mm Useful eye relief (measured from rim  of eyecup): 15mm IPD:  57 – 76 mm RFOV:  8.2  degrees = 143 m Focus type:  CF Prism system:  Schmidt-Pechan Phase coating: yes Waterproof: yes Weight (measured, with eyepiece cover […]

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Kowa BDII 6.5×32 XD

Specifications: Objective diameter:  32 mm Magnification:  6.5 x Exit pupil: 4.9 mm Eye relief (acc. to spec): 17 mm Useful eye relief (measured from rim of eyecup): 14.5mm IPD:  58 – 77 mm RFOV:  10.0  degrees = 175 m Focus type:  CF Prism system:  Schmidt-Pechan Phase coating: yes Waterproof: yes Weight (measured, with eyepiece cover […]

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Meopta Optika 10×42 HD

Specifications: Objective diameter: 42 mm True aperture (measured): 41mm Magnification: 10 x Exit pupil: 4.2 mm Eye relief (acc. to spec): 15 mm Useful eye relief (measured from rim of eyecup): 11 mm IPD (measured): 56 – 75 mm RFOV: 6.0 degrees = 105 m Focus type: CF Prism system: Schmidt-Pechan Waterproof: yes Weight (measured, […]

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Docter Aspectem 80/500 Vario 20-50×80

Specifications: Objective diameter:  80 mm Magnification:  20x – 50x Exit pupil: var. Eye relief (acc. to spec): 11 mm IPD:  56 – 74 mm RFOV:  var AFOV:  var Focus type:  IF Prism system:  Porro I Waterproof: splashproof Weight (measured, with eyepiece cover and objective caps): 5‘058 g    Remarks: The Aspectem, produced until 2018, but […]

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Omegon 2.1×42

Specifications: Objective diameter:  42 mm Magnification:  2.1 x Exit pupil: N.A. Eye relief (acc. to spec): N.A. IPD:  56 – 73 mm RFOV:  “26 degrees” Focus type:  IF Prism system:  none (Galilean) Waterproof: no Weight (measured, with eyepiece cover and objective caps): 391 g Made in: China    Remarks: The Omegon 2.1×42 is every bit […]

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Astro Hutech Hinode 1.8×40

Specifications: Objective diameter:  40 mm Magnification:  1.8 x Exit pupil: N.A. Eye relief (acc. to spec): “16 mm” IPD:  50 – 72 mm RFOV:  > 24 degrees Focus type:  IF Prism system:  none (Galilean) Waterproof: no Weight (measured, with eyepiece cover and objective caps): 204 g Made in: China   Remarks: With only 1.8x magnification, […]

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APM 8×30 MS ED (unbranded prototype)

Objective diameter:  30 mm Magnification:  8 x Exit pupil: 3.75 mm Eye relief (acc. to spec): 18.2 mm Useful eye relief (measured from rim of folded eyecup): 12.5 mm IPD:  57 – 72 mm RFOV:  8.1  degrees = 142 m AFOV:  65 degrees Focus type:  CF Prism system:  Porro I Waterproof: yes Weight (measured, with […]