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7X50 with compass telescope /W7X50 telescope/waterproof shockproof and fogproof telescope wholesale ranging coordinates
product category:Compass telescope
The binoculars (hereinafter referred to as "binoculars ") have the advantages of clear and bright imaging, large field of vision, convenient carrying and cheap price. They are suitable for astronomers to patrol the sky and observe planar objects such as nebulae, star clusters and comets.
Product Information
Brand: ZIY OUHU
Test project technical parameter magnification 7x
Incoming pupil diameter(mm) φ 50
Exit pupil diameter(mm) φ 5 field of view(angle) 7.1 °
Exit pupil distance(mm) 22.8 mm
Recent focal length(M) 9M
Identification rate(center of view) ≤ 4.5 ′ ′
Like slant ≤ 1 °
Relative tilt ≤ 30 ′
Two separate eyepieces in the form of objective lenses Five separate sets of lens coated broadband film Prism coated broadband film
Baoluolengjing focusing system of PRISM system
Mechanical minimum eyepiece distance(mm) 56mm maximum eyepiece distance(mm) 74mm
Decimal 15(diopter)-5(diopter)
Parallax 0.5(diopter)
Ejective optical axis parallelism large eye distance and small eye distance horizontal convergence ≤ 20 ′
Horizontal divergence ≤ 60 ′
Vertical ≤ 20 ′
Drop Test Height(Surface)
15 CM thick sand layer, products into plastic bags, 1.83 M height fall.
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