Active Member
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[China]
Address: No. 80, Tongji Avenue, Qingbaijiang District, Chengdu City, Sichuan Province
Contact name:ETTRVISION
Lijing International Optical Equipment Factory |
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Long Distance ED 8x42 Binocular Telescope For Outdoor
Parameter:
| POWER | 8 X ± 5% | 10 X ± 5% |
| OBJECTIVE DIAMETER | Φ 42mm ± 1 mm | Φ 42mm ± 1 mm |
| FEILD ANGLE | 7.3 ° ± 5% | 6.5 ° ± 5% |
| FIELD OF VIEW(at 1000m/at 1000yds.) | 128m / 384ft. | 114m / 342ft. |
| EXIT PUPIL DIA. | Φ5.25mm ±10% | Φ4.20mm ±10% |
| NEAR FOCUS | 2.5m | 2.5m |
| EYE-RELIEF | 18.0mm | 15.0mm |
| RELATIVE BRIGHTNESS | 27.56 | 17.64 |
| OPTICAL CONFIGURATION | OBJECTIVE LENS: | OBJECTIVE LENS: |
| OCULAR LENS: | OCULAR LENS: | |
| LENS TYPE: | LENS TYPE: | |
| PRISM: | PRISM: | |
| OPTICAL MATERIAL | ALL SPHERICAL LENS AND PRISM ARE MADE OF OPTICAL GLASS | ALL SPHERICAL LENS AND PRISM ARE MADE OF OPTICAL GLASS |
| PRISM MATERIAL: | PRISM MATERIAL: | |
| 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 |
| EYECUPS | REVOLVING STRETCH EYCUPS | REVOLVING STRETCH EYCUPS |
Features:
1. Fully Multi-coated Lens
All lens including eyepiece and objective lens are fully
multi-coated, light transmittance is 95% above.
2. BAK4 Prism with coating process
Advance BAK4 prism with FMC coating, prism dielectric film and
phase corrected prism in order to provide bright and crisp images.
3. Advanced ED Glass
Objective lens use advanced ED glass with abbe 90.3, lead to extra
low dispersion,creat clear images.
4. Topping Optical System
Topping optical system with Objective lens 4E3G; Ocular lens 5E3G.
5. Big Eyepiece
23mm big eyepiece for more comfortable view experience.
6. Large Objective Lens
42mm large objective diameter for wide angle view with less film
aberration.
Lightweight, open bridge body design with large, precise focus wheel
100% waterproof and fogproof,filled with Nitrogen,binoculars can stay in the water at the depth of 1.5 meters without any water immersing
This Binocualrs have used ED Glass ,it can reduce color dispersion to provide high resolution colors & clarity and Bak4 phase-coated prisms and fully multi-coated lenses
Advanced lens coatings for enhanced light transmission even in low light conditions
How to get a clear,sharp image?
Very easy,it only take four steps to focus on your target clear and
sharp
First, put your hand on the correct gesture.
Second, adjust the central focus wheel unitl your left eye sees
clear sharp image,
Third,adjust the diopter adjustment until your right eye sees clear
and sharp image.
The last step,adjust the barrels until getting a single circular
field.
