Steiner Observer 20×80

, ,
Specifications: Objective diameter:  80 mm Magnification:  20 x Exit pupil: 4 mm Eye relief (acc. to spec): 13 mm Usable eye relief (measured from rim of eyecup): 3.5 mm (!) IPD:  56 - 72 mm RFOV:  3.3  degrees = 58 m AFOV: 66…

Opticron Oregon 20×80

, ,
Specifications: Objective diameter:  80 mm Magnification:  20 x Exit pupil: 4 mm Eye relief (acc. to spec): 17 mm Usable eye relief (measured from rim of eyecup): 16.5 mm IPD:  56 - 77 mm RFOV:  3.3  degrees = 57 m Minimum focus…

Omegon Argus 20×80

, ,
Specifications: Objective diameter:  80 mm Magnification:  20 x Exit pupil: 4 mm Eye relief (effective, measured from folded-down eyecups): 13.5mm IPD:  56 - 70 mm RFOV:  3.3  degrees = 58 m AFOV:  66 degrees Focus type:  IF Minimum…

Celestron Skymaster 20×80 PRO

, ,
Specifications: Objective diameter:  80 mm Magnification:  20 x Exit pupil: 4 mm Eye relief (acc. to spec): 15.5 mm Usable eye relief (measured from rim of eyecup): 12 mm IPD:  56 - 72 mm RFOV:  3.2  degrees = 56 m Minimum focus…

Celestron Skymaster 20×80

, ,
Specifications: Objective diameter:  80 mm Magnification:  20 x Exit pupil: 4 mm Eye relief (acc. to spec): 18 mm Usable eye relief (measured from rim of eyecup): 15 mm IPD:  56 - 72 mm RFOV:  3.7  degrees = 65 m Minimum focus…

APM MS 20×80 ED

, ,
Specifications: Objective diameter:   80 mm True aperture:   80 mm (measured) Magnification:   20x Exit pupil:    4mm Eye relief acc. to spec: 16mm Usable eye relief (measured from rim of eyecup): 13.5mm IPD: 56 - 74 mm RFOV:  3.3…