8-24x ,Single-lens telescope 40mm high-definition metal optical lens, high-power astronomical telescope

Highly concerned chemicals: None Field of view: 6.13° Objective diameter: 22mm Prism type: BAK4 Waterproof rating: IPX7 (resistant to water and dust) Lens diameter: 40mm Lens coating type: MCF Magnification: 8-24 times Focusing method: Independent type Material: Metal Model number: BG824 Type: Single-barrel telescope Origin: China (CN) Color: Black Magnification: 8 - 24 times Objective diameter: 40mm Pupil diameter: 4.2mm Eye spacing: 15.6mm Field of view (in feet/kilometers): 6.13° Single barrel size: (286 - 560) × 52 × 52 cm Coating color: FMC green Optical power adjustment range: -4D to 4D