Telescope manufacturer-Zoom Telescope|Type 62 Telescope|Type 98 Telescope
model |
KFS20x80 |
magnification |
20x |
body material |
aluminium alloy |
rubber material |
rubber |
color |
black |
objective aperture |
Φ80mm |
eyepiece aperture |
Φ24.5 mm |
exit pupil |
Φ4mm ± 10% |
eye relief |
17mm |
(°)FOV |
3.3° |
(at 1000M)field of view |
58m |
(at 1000yds)field of view |
174ft |
diopter regulation |
· Right diopter ring |
eye distance |
58~72mm |
focusing system |
cent |
focusing lens |
eyepiece focusing |
diopter regulation |
-4~+4 diopter |
focus range |
-4~+8 diopter |
prism system |
porro |
lens material |
BAK4 |
optical system |
Objective lens :2 pieces 1 group |
Eyepiece lens :4 pieces 3 groups |