Features:
*Magnification: 18X-36X
*Objective Lens Diameter: 50mm
*Eyepiece Lens Diameter:16mm
*Focal Length of Objective : 320mm
*Exit Pupil: 1.4mm-2.8mm
*Field of View : 18X : 2.5degree; 36X : 1.6 degree
*EyeRelief: 9mm- 18mm
*Minimum Focusing Distance: 10M(32.8Ft.)
*Lens Coating:fully coating 
*Distortion: 4.6% -11.9%
*Focusing System:eyepiece external focusing 
*Body Materials: Alloy of aluminum
*Exterior Finishing : black or camouflage rubber armor 
*Waterproof 
*Photo adapter tube (optional)
*Dust caps for the objective and eyepiece
*Tripod #LP-169 included included as standard equipment
*Net Weight: 0.94kgs(33.15oz.)
*Packing : 6pc/CTN/2.5'; 15.5/17kgs