Specifications: Objective diameter: 90 mm True aperture: 90 mm Focal length: 500 mm Focal ratio: f/5.6 IPD: 59 – 80 mm Focus type: IF Waterproof: no Weight (measured, w/o eyepieces, with eyepiece cover and objective caps): 5‘980g Made in: Japan Remarks: Borg of Japan produces a line of astronomical telescopes, components and accessories […]
Specifications: Objective diameter: 40 Magnification: 10 x Exit pupil: 4 mm Eye relief (acc. to spec): 16 mm Useable eye relief (measured from rim of eyecup): 14 mm IPD: 55 – 75 mm RFOV: 6.0 degrees = 104 m Focus type: CF Prism system: Schmidt-Pechan Waterproof: splash-proof Weight (measured, with eyepiece cover and strap): 695g […]
Specifications: Objective diameter: 35 Magnification: 7 x Exit pupil: 5 mm Eye relief (acc. to spec): 16 mm Useable eye relief (measured from rim of eyecup): 13.5 mm IPD: 55 – 75 mm RFOV: 8.0 degrees = 140 m Focus type: CF Prism system: Schmidt-Pechan Waterproof: splash-proof Weight (measured, with eyepiece cover and strap): 633 […]
Specifications: Objective diameter: 40 Magnification: 8 x Exit pupil: 5 mm Eye relief (acc. to spec): 16 mm Useable eye relief (measured from rim of eyecup): 14 mm IPD: 55 – 75 mm RFOV: 7.0 degrees = 123 m Focus type: CF Prism system: Schmidt-Pechan Waterproof: splash-proof Weight (measured, with eyepiece cover and strap): 698g […]
Specifications: Objective diameter: 50 mm Magnification: 12 x Exit pupil: 4.2 mm Eye relief (acc. to spec): 13 mm Usable eye relief (measured from rim of eyecup): 11 mm RFOV: 5.7 degrees = 100 m Focus type: CF Prism system: Schmidt-Pechan Waterproof: yes Weight (measured, with eyepiece cover and objective caps): 1‘134 g Made in: […]
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 […]
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 (??) […]
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: […]
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 […]
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 […]