10-300x40 Monocular HD Telescope BAK4 Prism Telescope,Style: Standard

1. Objective lens diameter: 30mm
2. Eyepiece diameter: 15mm
3. Objective lens coating: FMC broadband green film
4. Eyepiece coating: blue film
5. Prism material: BAK-4
6. Prism System: Roof System
7. Focusing method: Rotation focusing/stretching focusing
8. Near focus distance: 2 meters
9. Tripod interface: 1/4 standard screw
10. Material: ABS plastic steel
11. Dimensions: 128/168 x 43mm
12. Weight: about 160 grams