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Extra-low Dispersion BKA4 Glass lens

Extra-low Dispersion BKA4 Glass lens

Regular price £244.00 GBP
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Product Description

Ultra-low Dispersion BKA4 Glass lens comet ED binoculars 8x42 with filled Nitrogen

High-end products start with the details and fine every detail.
The comet ED binoculars 8x42 are the best outdoor companion for customers.

Extra_low dispersion glass provide clear,crisp and bright images.
FMC-green coating Extreme light transmittance and image reproducibility, also clear when the light is weak.
Phase coating: Improve color reproduction .
BAK4 Prism: Standard Prism provide high quality Optimize light transmission.
Waterproof and Fogproof: Nitrogen Sealed body Make the telescope waterproof and anti-fog, increase the service life.

Compatible with smartphone: You can link your mobile phone to take photos or videos, and clearly record distant scenes.
Great portability: Compact and lightweight for easy travel.
High Quality Aircraft Aluminium Alloy Body Material is resistant to extrusion.
Twist-up eyecups: still watch in comfortable viewing with or without eyeglasses.
With hanging string, prevent telescope slipping from your hand.
Easy operation: Anti-slip focus adjusting rotary knob and smooth rotating .
Eyepiece and lens protection covers protects against unwanted scrapes and scratches.
Outdoor best: The comet ED binoculars 8x42 is designed for sport using, hunting, camping, bird watching and other outdoor use.
The material of the prism and the coating technology of the lens determine the quality of the telescope.
Don't be fooled by appearance, core technology is the key.
Choose comet ED binoculars 8x42 for superior vision beyond imagination
Detailed Images
Specification
TYPE
8X42
10X42
POWER
8 X ± 5%
10 X ± 5%
OBJECTIVE DIAMETER
42mm
42mm
FEILD ANGLE
7.3º
6.5º
FIELD OF VIEW(at 1000m/at 1000yds.)
128m / 384ft.
114m / 342ft.
EXIT PUPIL DIA.
5.3m
4.2m
NEAR FOCUS
2.5m
2.5m
EYE-RELIEF
18.0mm
15.0mm
OBJECTIVE LENS:
4E3G
4E3G
OCULAR LENS:
5E3G
5E3G
LENS TYPE:
SPHERICAL LENS
SPHERICAL LENS
PRISM MATERIAL:
BaK4
BaK4
COATING CONDITION
ALL LENS - FULLY COATED
ALL LENS - FULLY COATED
SURFACE TREATMENT
PAINT / RUBBER
PAINT / RUBBER
RESOLVING POWER
5.7 ”
5.7 ”
FOCUSING SYSTEM
CENTER FOCUS
CENTER FOCUS
FOCUSING ADJUSTMENT
-4 TO +8 DIOPTER
-4 TO +8 DIOPTER
OCULAR ADJUSTMENT
-4 TO +4 DIOPTER
-4 TO +4 DIOPTER
ADJUSTABLE EYE PUPIL
58--73mm
58--73mm
Dusk factor
18.3m
20.5m
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