1. Provides positive up and down but negative in left and right positions 2. Suitable for astronomical observation, depicting clear and sharp contrasts 3. Suitable for refractors, not suitable for telescopes with too long reflectors 4. Attached eyepiece: 1.25 inch 5. Telescopic connection: 1.25 inch, 2 inch (2 inch requires its own adapter) 6. Reflectivity: 90 per cent 7. Shell material: metal 8. Net weight: about 142g
