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YJT40100 telescope adopts fully coated, broadband anti-reflection green film lens, clear and bright. Nitrogen-filled waterproof, nitrogen-filled mildew resistant.
BAK4 prism, long pupil, large eyepiece, comfortable to watch, binocular independent focus, beautiful atmosphere. Exquisite workmanship, the use of full broadband multilayer coating, high transmittance, imaging sharp, so that the observation brightness, image quality and the authenticity of image color is obviously better than similar telescopes. It has the advantages of wide visual field, large exit pupil diameter and long exit pupil distance. It can also see the target clearly and comfortably in low-light environments such as dusk and dawn and (or with glasses). High purity nitrogen protection, waterproof and anti-fog, high sealing performance. All metal structure, durable; Rubber-clad, shock-absorbing, anti-slip design with strong ability to withstand bumps and vibrations.