10X50 large ocular lens Binoculars

Specifications

1.20X50mm
2. water&foggy proof
3. lll night vision
4.BAK4 prism
5. metal body

Binoculars

 

Model	10X50
Multiplying Power	10
Objective diameter	50mm
Eyepiece caliber	20mm
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	5mm
Field of View	367ft/1000yard
View Angle	7.8degree
Near focal distance	5m
Optimum distance	10-1000m
Prism Glass Material	HDMI BAK4
Waterproof Rate	WATER RESISIT
Mirror Body material	Rubber + metal
Dimension	160*160*80mm
Color	black
Weight	800g

 

 

Model	7X50
Multiplying Power	7
Objective diameter	50mm
Eyepiece caliber	24mm
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	7.14mm
Field of View	367ft/1000yard
View Angle	7.8degree
Near focal distance	5m
Optimum distance	10-1000m
Prism Glass Material	HDMI BAK4
Waterproof Rate	WATER RESISIT
Mirror Body material	Rubber + metal
Dimension	160*160*80mm
Color	black
Weight	800g

 

 

 

  

 

 

Knowledge spread

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.