• Eyepiece diameter: 22MM; objective lens diameter: 50MM.
• Large-caliber super wide-angle: Generally， the larger the diameter of the telescope， the larger the field of view， the greater the light， the better the imaging brightness. This model uses a 61MM objective lens and adopts a super wide angle.
• Central axis focusing: solid structure， stable and durable， comfortable grip and accurate focusing.
• Optical coating: double-sided broadband coating， magnification: 20X， waterproof type: waterproof.
• High-definition imaging: BAK4 prism telescope， the image is not distorted and not distorted， and the viewing is pleasing to the eye， and the phase is clear without dark edges.