1. Using FMC multi-layer broadband green film, multi-layer ultra-high light transmittance coating. Accurately designed professional multi-layer coatings can improve the performance of the telescope optical system. Can help see brighter colors. More details. It adopts a large diameter and large field of view. 50MM. The larger the caliber. The more light you enter. The clearer the image. Can see richer details. Life is waterproof, not afraid of wind and rain. Waterproof design, good waterproof performance. Double mirror focusing. The imaging can be controlled at will. Not only can control the objective lens. Can also adjust the eyepiece
Product specifications: 12X42 12X50
Objective lens diameter: 50MM
Prism material: BAK4
  Eyepiece diameter: 23MM
Field of view: 258FT/1000YDS
  Product magnification: 12 times
Objective lens coating: FMC multi-layer broadband green film Waterproof level: life waterproof.
   Lens: all-optical glass.