FEATURES
Fully Multi Coating
Bak-4 prisms
100% waterproof/fogproof/dustproof
New focus adjustment design
Twist-up eyecups
Long eye relief
Very good optical performance
SPECIFICATIONS
Model |
GS18 20-60X80 |
Magnification |
20-60X |
Effective objective lens diameter |
80 mm |
Exit pupil diameter |
4-1.3 mm |
Exit pupil distance |
15-12 mm |
Field of view |
33-16.5 m/99-49.5 ft |
Field of view (degrees) |
1.9-0.95° |
Field of view. apparent (degrees) |
37.5-54° |
Shortest focusing distance |
10 m |
Diopter correction at ∞ |
±5 |
Light transmission |
65% |
Approx. length |
438 mm |
Approx. weight |
1150 g |
Optical coating |
Fully Multi Coated |
Tripod thread |
TR01 |
ACCESSORIES