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E12.5L-A Long Eyerelief Eyepiece(celestial) Image首頁Image產品介紹Image配件
E12.5L-A Long Eyerelief Eyepiece(celestial)
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E12.5L-A Long Eyerelief Eyepiece(celestial)
Long eye-relief eyepieces 

Model # E12.5L-A
Focal length (mm) 12.5
Eye relief (mm) 20
Barrel size 1.25”
Field of view (degrees) 55°
lens constrution  7 elements in 4 groups 
construction  Aluminum
coating  Fully multi-coated 

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