20X50 HD BAK-4 Telescope FMC Multilayer Blue Film Binocular Optical Lens Low Light Night Vision Waterproof Travel Telescope
Specification:
| Color | Black, yellow, brown | 
| Eyepiece | 18 mm | 
| Objective Lens | 50 mm | 
| Variable Magnification | 20x | 
| Field of View | Field7.3° | 
| Prism material | BAK-4 | 
| Prism system | Paul system | 
| Waterproof rating | Waterproof | 
| Coating method | FMC Broadband Coating | 
| Glass material | All optical glass  | 
Features:
1.Fully multicoated Optical Lenses
2.High Power Field - 20 x magnification and 50 mm objective lens ,focusing on your target for brilliant detail at 1000 yards out.
3.Bright and Crisp Viewing - All lenses are made of BAK-4 prisms and FMC multi green coated, the transmittance of light can up to 99.5%.Unlike others,single bule coated ,the imaging is not very clear and even has color aberration.
4.Low Light - can be used for with some light but not for completely dark night.
5.Dustproof Binoculars Waterproof
6.Compact & Lightweight
7.Easy To Focus
Package Includes :
1× Binoculars
1× Carrying Pouch
1× Lanyard
1× Cleaning Cloth









20X50 HD BAK-4 Telescope FMC Multilayer Blue Film Binocular Optical Lens Low Light Night Vision Waterproof Travel TelescopeBuy Now
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