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Eyepieces are usually interchangeable to give different magnifications, or may consist of a single variable "zoom" eyepiece to give a range of magnifications. Magnifications of less than 20× are unusual, as are magnifications of more than 60× since it can lead to poorer image brightness, a narrow field of view, and show too much image shake, even on a tripod. The eyepiece mount layout can be "straight-through" (the eyepiece is on the same axis as the body of the scope), or "angled" (the eyepiece is at an angle of usually 45 degrees to the body of the scope).
Zoom eyepiece focal length: 26.1mm~8.83mm
Zoom eyepiece lens structure (#Elements/#Groups): 7/4
Apparent field of view: 40°~60°
Magnification: 16~48X
Real field of view: 2.5°~1.25°
Objective lens focal length: 423.08mm
Field of view at 1000m/1000yds: 43.5m~21.5m/130ft~65ft
Eye relief: 19.4mm~17.8mm
Exit pupil: φ 4.2mm ～φ 1.4mm
Minimum focusing distance: 5m
Effective diameter of objective lens: φ 68mm
Objective lens structure (#Elements/#Groups): 2/2
Twilight factor: 33~57.1
Focusing system: Internal porro prism focusing with dual focusing device
Accessories
Manual x1
Protective bag (including shoulder strap) x1
Lens cleaning cloth x1
Protective cover X4
Impact resistant, pressure resistant carton x1
A: Guangzhou Canislatrans Sports Limited is a professional manufactures who producing military outdoor equipment, tactical and optical instrument.
A:Yes, we can
2) We have all detailed records for nonconformity products.
2. Please send your original samples, we can make the copy as yours.
2)30-35 days for 1 20GP container .