Features:
*Magnification: 20X-60X
*Objective Lens Diameter: 60mm
*Eyepiece Lens Diameter: 20mm
*Focal Length of Objective : 400mm
*Exit Pupil: 1mm-3mm
*Field of View : 20X : 1.7degree; 60X : 0.83 degree
*EyeRelief: 15.5m- 32.5mm
*Minimum Focusing Distance: 6M(19.7Ft.)
*Lens Coating:fully coating 
Prism Materials:BAK-4
*Distortion: 7%
*Focusing System: internal focusing by moving barlow lens 
*Body Materials: Alloy of aluminum
*Exterior Finishing : black sprayed rubber painting  
*Waterproof 
*Photo adapter tube (optional)
*Dust caps for the objective and eyepiece
*Tripod #LP-169 included included as standard equipment
*Net Weight: 1.05kgs(37.03oz.)
*Packing :10pc/CTN/2.3'; 18.5/20kgs