9x63   20x80 
Product Number B120031 B122080 
Clear Aperture 63 mm (2.5 inches) 80 mm (3.2 inches)
Prism Type Roof Prism Porro prism
Magnification 9x  20x 
Coatings Fully-coated Multicoated
Field of View 93m at 1000m/5.8°  56m at 1000m/3.2°
Exit Pupil 7 mm  4 mm 
Eye Relief 21.5mm  17 mm
Dioptre Adjustment Range N/A  -4 ~ +8 
Range of interpupillary distance adjustment 63 mm - 73 mm  58 mm - 72 mm 
Additional Features 9x63  20x80 
Tripod Mountable Yes. Compatible with 3rd party brackets. Mounting bracket not included. Yes with included sliding mounting bracket
Water Tightness No  No 
Carry Case Included Included 
Neck Strap Included Included
Lengs cleaning cloth Included Included
Weights and Dimensions 9x63  20x80 
Dimensions (H x W x D) 6.25 x 10.5 x 2.8 13 x 9 x 4 inches
Weight 2.75 lbs. 4.55 lbs.