Description:
The 8X30 binocular is small and light so it is for who is on his long journey. The 8X30 binocular is designed to roof prism, the 8X30 binocular’s imaging is clear and sharp and its structure is light and solid. The 8X30 binocular lens barrel is full metal which ensure its strong and durable. And the rubber Wrapped outside can ease the impact. There are rubber patch on the its eyepiece, it is suitable for people with glasses. The 8X30 binocular is nitrogen filled, waterproof.
Specification:
Item 8x30
Magnification 8x
Caliber(mm) 30
Field of View (ft/1000yads) 430
Eye Relief(mm) 5
Exit Pupil (mm) 23
Prism System Proof BAK4
Water Resistance Yes
Fog Resistance Yes
Weight (g) 710
What is Bak-4 prism
Most people is thinking BAK-4 is a name of material , in fact, BAK-4 is type of the glass.Standing for Baritleichkron which is a Barium Crown glass, BaK-4 prisms are in most cases considered superior to BK-7 prisms as they have a higher refractive index (1.569) and so has a lower critical angle. The result is that that less peripheral light is "lost" through the non-total internal reflection.
It has been pointed out to me that many profiteer's optical devices labeled as having BAK4 prism glass are not actually the same as the Schott BaK-4 ones. The profiteer's
BAK4 is not Barium Crown, but rather a phosphate crown and has a refractive index of 1.5525 and a dispersion of -0.0452 (Schott: -0.0523) and also has a higher permitted bubble count than Schott BaK-4 glass.
Packaging details:
A 8X30 binocular
A eyepiece cap
Two objectlens caps
A case
USE OF RETICLE
One of the telescopes of the binocular includes a horizontal and vertical scale reticle
graduated in 10 mil increment unit markings (1 unit - 10 mils, 2 units - 20 mils, etc.)
Fire corrections can be made by viewing the impact area and determining angular
corrections by use of the left or right horizontal reticle scale.
USE OF RETICLE
In determining range, if an object fills one 10 mil unit marking on the horizontal retie
scale and is known to be 10 meters wide, the object is 1000 meters away. If the same size
object fills two unit markings (20 mils), it would be 500 meters away. When this formula is
used, the distance will be given in the same units of measurement (feet, meters, etc.) as is
used in estimating the known size of the object. The same formula can be used to determine
range with the vertical reticle scale when the height of an object is known. The use of the
vertical scale is preferred (especially on level terrain), since objects are often viewed obliquely
along the horizontal axis.
Payment:
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Payment is expected immediately at auction close.
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Shipping(worldwide):
Free Shipping!!!
1)Item will be shipped within 3 working days after received a verified payment and showed "Completed" status.
A tracking number will be emailed to buyer at the time of shipment.
2)Please leave us the right address! We'll not be responsible for package returning due to buyer's fault (such as being out, wrong address, etc.)
3)China post usually takes 2-3 weeks, we are not responsible for tracking. Please positively contact your local post office if you don't receive it. If u want to choose safer and faster way, such as EMS, DHL or UPS please pay extra fee. EMS usually takes 5-7 working days with full records.
4)This delivery arrangement is excluding our Public Holiday.
5)Due to shipping Regulations: ALL The Batteries Will Be Remvoed Prior To Shipping.
6)Some items may be delayed if held by customs for additional inspection. Delivery time depends on the product and the distance to its destination.
7)We try our best to provide you the most reliable, affordable way of shipping service.but sometimes international delivery is highly depended on the local customs and post service.if you do not receive your item on time, please contact us immediately for further assistance. we will be responsible for any damages or losses incurred in the shipping process.
About Us:
SKW Optical Technology (Shenzhen) Co., Ltd.is a manufacturer of high quality optical equipment for both military and civilian use. Our specialty lies in semi-high and high-end optical rifle scopes but we also produce spottingscopes, binoculars, firearm accessories (fully conform to the international law), battle fatigues, bullet-proof products and a wide range of outdoor accessories. Our factory which makes the optical scopes, located in Shenzhen, Guangdong, China.
More information, please click our website.
Contact Us:
1)We work 5 days (Mon to FIR 8:30 AM-6:00 PM EST ) a week.
2)You can leave us a message directly on Trade Menager or send us in station letter ,we will answer you as soon as possible .
Return Policy:
1)Please notify us within 15 days (according to the posting date).
2)Return items MUST have all ORIGINAL packaging and accessories.
3)Return postage and insurance charge is non-refundable for return items.
4)Return/exchange shipment of quality, we will supply free after service maintenance to quality problem goods (refund or exchange new shipment).
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