SPECIFICATIONS

Waterproof: yes
Type: Monocular
Shockproof: yes
Proximity: 5m
Product Name: 25-75x70 Zoom Telescope
Prism type: porro
Prism: BAK4
Origin: Mainland China
Objective lens diameter: 70mm
Multiples: 25-75x
Model Number: 25-75x70
Lens barrel diameter: 92mm
Eyepiece diameter: 15mm
Exit pupil diameter: 2.8-1.0mm
Diopter: -4D~+4D
Dim Index: 41-72
Coating: Multi-layer coating
Certification: CE
Apparent breadth (ft/1000yds): 1.9-0.91
Anti-fog: yes
About the brightness factor: 7.8-1.0