Optical Binoculars wholesale china

With aluminum alloy suitcase
All metal construction with rubber armor provides a sure grip and great durability and also with a special prisms construction for extremely shockproof
Highest brightness: better than 90% light transmission, fully broadband multi-layer coating optics
The best optical performance requires the best optical material, by use of sepcial performance optical material
We extremely raising the optical performance standard of the product
Flat-field, distortion free, high resolution optics, equally sharp from center to edge, without any aberrations
Maximum eye relief
The dry nitrogen filled and O-ring sealed for 100% waterproof and fogproof, also completely fog-free vision from -40 to +70
Built-in reticle and compass
Weight: 1,820g