Specifications

1. Nitrogen waterproof
2.Full duplex broadband coating
3.Full Metal steel

 

FMC comprehensive multi-coating

BAK4 prism top Nitrogen waterproof

Durable double pass telescope Plastic lens barrel

Rubber skin Hu All-optical HD lens

High-definition imaging, non-dispersive...

 

Code	100004
Model	8X40
Multiplying Power	8
Objective diameter	40mm
Eyepiece caliber	5mm
Objective lens coating	Multilayer broadband blue film
Eyepiece coating	high definition
Focalizing System	The Central Focus and right eyepiece
Distance Of Exit Pupil	20mm
Exit Pupil Diameter	26mm
Field of View	157ft/1000yards
View Angle	8degree
Near focal distance	5m
Optimum distance	5-1000m
Prism Glass Material	HDMI BAK4
Waterproof Rate	WATER RESISIT
Mirror Body material	Rubber + metal
Dimension	215x80x200mm
Color	black
Weight	600g

 

 

 

 

 

 

 

 

 

 

Prism material:BAK4 is not about the lenses, it is about the prisms that fold the light path inside the binoculars. BAK4 prisms are generally considered better because they give a perfectly round 'exit pupil' (what you actually see). 

 

 Lens coating: FMC( fully multi-coating),the antireflection coating is the action of the lens, the anti-reflection film is known as antireflection film, which is to try to suppress the effect of the reflection sheet glass lens, loss of light quantity is reduced, as much as possible so that the incident light through the lens, and therefore the anti-reflective film layer antireflection effect can produce, while multi-coating, the lens will not reduce the rate of identification, nor damage the color reproduction. High tech multi-coated, high permeability rate, image clearer.