1.IPX7 waterproof with filling nitrogen. 2.Pure optical fully multi-coated lens and BAK4 Prism 3.Wide angle large field of vision.The eye relief can reach 20.4mm and kilometer field of view up to 110m 4.Multiple gears and twist-up eyecups is suitable for people with different visions.myopic users do not need to remove glasses to enjoy easy observations. 5.Full texture of all metal focusing wheel with better interlocking and diamond pattern design. 6.The skin made of rubber not only can protect the product effectively, but also hold the handle comfortably at the same time 7.Deeper eyecups design with 9.5 mm reduces the probability of dark shadow in the field of vision 8.We can use it to watch birds, watch the moon, watch the scenery, watch sports events, watch concerts, watch animals, etc. It will be our Good Helper , I believe you will not regret having it.
Specification:
Model:10X42/8X42/8X32 Eyepiece Diameter:19.5mm/21mm/21mm Type of Prism:Roof Bak4 Prism Coating:Aluminizing Lens:FMC Focus System:Cent. Focusing Lens:Int. Angle:5.8°/6.3°/7.38° Ft/1,000Yds:304ft/330ft/387ft M/1,000M:101m/110m/130m M / Ft.:4.5m/14.8ft;4.5m/14.8ft;3m/10ft Resolution:5.6"/5.6"/6.8" Eyecups:Twist-up Exit Pupil:4.2mm/5.18mm/4mm Eye Relief:16.9mm/20.4mm/16.8mm Diopter System:Right Ocular Diopter COMP.:±3D Interpupillary Dist.:55~75mm Tripod Adapter Interface:Yes Water Proof:IPX7 Nitrogen Filled:Yes
SV47 high-quality binoculars, even if you choose 10×42 binoculars, it will not shake, and after using at minus 10 degrees Celsius, return to the warm interior of the car without condensation or fogging, except for this In addition, it is light and portable, suitable for hunting, bird watching, camping, viewing and other scenes.
IPX7 Waterproof & Fog-proof
Injecting nitrogen into the telescope's sealed barrel can effectively prevent moisture from entering, waterproof and anti-fog, and can be used normally even in very harsh environments, greatly improving the service life.
Bak-4 Prisms that maximizes light transmission
Type bak4 glass is a fine,dense optical glass that removes glass effctively internal lighting reduces light losses,but the price is more expensive generally used in high-end optical products
Fully Multi-coated Lens
FMC is the abbreviation of Fully Multi-Coated, which means that all the light passes through the glass-air contact surface with a multi-layer coating.
The optical structure uses a 3-piece objective lens, a focusing lens, a set of high-precision roof prisms, and a 4-piece 3-group eyepiece. Usually, the objective lens of binoculars is two-piece, and the three-piece type can reduce the aberration and improve the image quality, but the cost is also higher.
how to choose the model?
1.The 8X32 size is small, light weight, stable imaging, good observation comfort, suitable for outdoor walking, traveling, watching concerts. 2.The 8X42 specification has moderate volumetric weight, stable imaging, high imaging brightness, and good observation comfort. It is suitable for use as a tool telescope, such as bird watching, stargazing, viewing, etc. 3.The volume of 10X42 is moderate, the imaging jitter is slightly larger, suitable for the people who pursuit of magnification and the stability of the arm is also good, it is suitable for bird watching, stargazing, etc.
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