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Place of Origin | China |
Brand Name | YBoptics |
Certification | CE, ROHS |
Model Number | YBR28 binoculars |
High Powered Wide Angle Of View Bak4 Binoculars 10x42 For Bird Watching
Parameters for 10x42 Binoculars
POWER | 10x | 8x |
IMAGE. RESOIUTION | 5.5″ | 5.8″ |
OBJ.LENS DIA. | 42mm | 42mm |
TYPE OF PRISM | BaK4 | BaK4 |
NUMBER OF LENS | 8 pieces 6 groups | 8 pieces 6 groups |
LENS COATING | FMC/Object lens&eyepiece is FBMC | FMC/Object lens&eyepiece is FBMC |
FOCUS SYSTEM | Cent. | Cent. |
FOCUSING LENS | Int. | Int. |
EXIT PUPIL DIAMETER | 4mm | 4mm |
EXIT PUPIL DIST. | 15.2 | 15.2 |
FIELD OF VIEW | 5.8° | 5.8° |
305ft | 319ft | |
102m | 106m | |
MIN. FOCAL LENGTH | 2m | 3m |
RELATIVE BRIGHTNESS | 18.23 | 18.23 |
TWILIGHT INDEX | 20.4 | 20.4 |
DIOPTER SYSTEM | Right Eyepiece | Right Eyepiece |
DIOPTER COMP. | ±5 | ±5 |
INTERPUPILLARY DIST. | 56mm~74mm | 56mm~74mm |
NITROGEN FILLED | NO | NO |
EYECUPS SYSTEM | Twist-up | Twist-up |
Introductions of 10x42 Binoculars
* Fully Multi-Coated (FMC) optics and premium BaK-4 prisms enable superior resolution, avoid chromatic aberration, and guarantee excellent color fidelity, clarity and light transmission. |
Comparative Advantages
1. High refractive index BAK4 prism prevents light loss through optics and provides unmistakable brightness. Meanwhile, FMC green film optical glass lenses with high light transmission coatings create stunning images and protect your eyes.
2. These binoculars are powerful and easy to use, with a single turn of the large central focus knob for sharp image quality.
3. Adjustable twist eye mask for comfortable use. Enjoy a comfortable viewing experience even with your glasses on. Simply rotate the eyecup up or down to see the entire field of view. The central focus wheel requires minimal rotation for fast, near-infinite absolute sharpness.
4. Powerful magnification and wide field of view. Designed for outdoor activities such as climbing, hiking, driving, wildlife and landscape watching. This power can also be used to watch big dramas, concerts, football matches, and more.
5. Lightweight binoculars are great for travel and hunting. A durable body with non-slip rubber armor provides a solid grip for a great user experience.
What's in a Standard Packaging Box?
10x42 Binoculars: 1
Soft bag: 1
Portable carrying box: 1
Cleaning cloth: 1
Hand strap: 1
Manual: 1
We offer OEM / ODM service; Customize scopes according to your specific requirements.
Company Profile
Shifang Yuantong Optical Instrument Co., Ltd., with 2 X ISO9001 factories,is one stop solution service provider for spotting scopes, binoculars, monocular, night vision, astronomical telescope, rangefinder, variable zoom telescope, rifle scope, scope accessories etc.,
Also provide OEM/ODM/customization service.
welcome customers from all over the world.We are sincerely dedicated to partnering with you to get win-win.