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10x42 Roof Prism Binoculars Center Focus Long Distance Telescope With Bak4 Prism

China Sichuan Tontube Technology Co.,LTD certification
China Sichuan Tontube Technology Co.,LTD certification
Customer Reviews
Good quality products, trusted supplier!

—— VIctor Osorhan

Outstanding product quality & service! We have worked with a lot of companies in Asia, many times the quality is great but the communication is too complicated. In case of Shifang Yuantong Optical Instrument the quality of the products is excellent AND the communication is outstanding easy and fast

—— Matthias Frisch

8x33 Monocular ED I ordered only one as sample. They shipped fast, had in stock. It is of good quality, very sharp optics, focus smooth and fast.

—— Giorgio Pattarini

Very high quality product! Supplier is attentive, knows the business and is always willing to help. Very pleased with the whole process.

—— Ana Silva

Binocular 8x40 Porro FOV 140m/1000m I ordered one piece as sample, and they shipped promptly from stock. Well made product, very sturdy; the prism are mounted into a cradle inside the housing. The objective is recessed and protected. Focusing wheel is a bit hard but precise; eyepieces are stable. Good optics with green coatings, prisms with black c

—— Milucci Christian

I just wanted to say THANK YOU! :-) ^_^You've always responded to all my questions very promptly and with all the details i asked!You worked with me offering different options when appropriate:shipping options, or neck strap options,or boxes, You've always nice to me! so Thank you!!!

—— Ann Byrne

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10x42 Roof Prism Binoculars Center Focus Long Distance Telescope With Bak4 Prism

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Product Details:
Place of Origin: Sichuan China
Brand Name: OEM/ODM
Certification: CE / FCC / ROHS
Model Number: DSGBBE
Payment & Shipping Terms:
Minimum Order Quantity: 50
Price: Negotiation
Packaging Details: Master carton: size 41.6x26.5x26.5cm / 6 units per carton / G.W.:6.3KG
Delivery Time: 7 work days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram, Paypal
Supply Ability: 30000 units per month
Detailed Product Description
Magnification: 10x Surface: PVC
Size: 15.1x13.5x5.6cm Level: Professional Telescope
Color: Military Green
High Light:

ed glass binoculars


long distance telescope

Roof Prism Binoculars 10x42 Center Focus Long Distance Telescope with Bak4 Prism


Quick Information


Prism Coating prism dielectric film and phase corrected prism
Lens Objective lens 4E3G / Ocular lens 5E3G
MOQ 50 pcs
Sample Available
Prism System Roof


Optical System


Fully Multi-coated Lens

All lens including eyepiece and objective lens are fully multi-coated, light transmittance is 95% above.

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.

Advanced ED Glass

Objective lens use advanced ED glass with abbe 90.3, lead to extra low dispersion,creat clear images.

Topping Optical System

Topping optical system with Objective lens 4E3G; Ocular lens 5E3G.

Big Eyepiece

23mm big eyepiece for more comfortable view experience.

Large Objective Lens

42mm large objective diameter for wide angle view with less film aberration.




Magnification 10x
Objective Diameter 42mm
Near Focus 2.5m
Field of View (1000m) 114m/342ft
Field Angle 6.5°
Exit Pupil 4.2mm
Eye Relief 15mm
Focus System Center Focus
Size 15.1x13.5x5.6cm
Weight 708g


Body Design


IPX7 Waterproof Standard

IPX7 level waterproof allow the binocular fall into 2m deep water for 30min within breaking optical performance.

Nitrogen-filled Fog Proof

100% pure nitrogen-filled lens protect clear film without fog impact.

1.5m Shock Proof

Pass factory test droping from 1.5m high which is normal using height.

Metal Body

Aluminium alloy body with hollow out shape based on ergonomics. Handle easier and stabilized.


Skid-resistance big focus wheel with perfect handle feeling. Adjust image easier.

Tripod & Mobile Holder Available

More stabilized metal screw tripod interface.

Mobile holder available for sharing exciting moment.

Twist-up Eyepiece

Twist-up eyepiece with 2 level click-stops for comfort view position quickly.




1. Packing:

1) Inner Box: binoculars / wiping cloth / strap / instruction note / soft carry bag

2) Master Carton: 6 units per carton / size 41.6x26.5x26.5cm / G.W.:6.3KG


2. Customization:

1) Customized card: Thank you card for your customer

2) Accessories: Tripod / mobile holder

3) Logo: logo printing on binoculars / wiping cloth / strap / carry bag

4) Customized gift box: with your own logo and pattern


3. Payment: Accept T/T / Paypal / L/C or other payment method according to your convenience


4. Warranty: 2 years limited warranty


5. Delivery & Shipping:



1) Production starts after down payment confirmed.

2) Order deliver after fully payment confirmed.

3) Order production time 15-30 days.



1) For small quantity order or sample order, we suggest DHL and EMS.

2) For large quantity order we suggest shipping by sea or air way.


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ED Glass

10x42 Roof Prism Binoculars Center Focus Long Distance Telescope With Bak4 Prism 0


10x42 Roof Prism Binoculars Center Focus Long Distance Telescope With Bak4 Prism 1

Contact Details
Sichuan Tontube Technology Co.,LTD

Contact Person: Jane Tian

Tel: 18011461362

Send your inquiry directly to us (0 / 3000)