Astronomical observation, Concert/competition, Natural observation, Night watch, Outdoor activities, Scientific research activities, Object observation, Other, Children's popular science
Magnification
Continuous zoom
Roof Prism
1 total internal reflection and 5 reflections (some refraction)
Porro Prism
4 total internal reflections (no refraction)
Prism Models
K7 Prism, K4 Prism
Magnification
True 45x zoom with comparison to 15x view for image contrast and clarity
Image Quality
Low-end Roof Prism imaging: lower brightness, yellowish color
Porro Prism imaging: higher brightness, pure color
Additional details
Optical Coating
FMC (Fully Multi-Coated) broadband multi-layer coatings on all lens surfaces to increase light transmission, reduce reflection, enhance color saturation, and ensure clear and bright field of view
Large field of view for comfortable observation over long periods
Field of view expressed in degrees, meters at 1000m, or feet at 1000 yards
Larger aperture and lower magnification yield wider field of view
Suitable for insect, bird, flower observation, outdoor landscapes, stargazing, moon viewing, concerts, outdoor travel, and sports events
Clear visibility of distant objects such as road signs at 500m, neon signs at night, lunar craters, and maria
Additional details
Central Focus Wheel
quick and precise focusing
Anti-slip Rubber Coating
comfortable and secure grip
Diopter Adjustment
eyepiece adjustment for vision differences between eyes
Zoom Range
15x to 45x continuous zoom for flexible viewing distance and clarity