12x50 Powerful Binoculars ED Telescope With SMC Coating HD BAK4 Prisms /Ultra Wide View Angle IPX6 Waterproof

All lenses are coated with SMC, and the light transmittance is significantly higher than that of ordinary FMC coating. Visible light band (about 400-700nm), greatly improve the light transmittance.
Bak4 prism, the prism is coated with Multi Coating + Phase Coating + Dieletric coating, which improves the refractive index, effectively eliminates the internal light scattering loss, and reduces the phase difference.
ED (Extra-low Dispersion) lens is a special glass that effectively reduces chromatic aberration through low dispersion of light of different wavelengths, and can provide you with a high-definition visual experience.
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