Fully coated optical system for sharp images. Rubber coated focus wheel - close focus from 8.2ft / 2.5 M. Twist-up eye cups with position stops for eye relief. BAK-4 Roof prisms. System H2 optical system. Nitrogen purged - waterproof fog proof. 8x Magnifi

Details Fully coated optical system for sharp images. Rubber coated focus wheel - close focus from 8.2ft / 2.5 M. Twist-up eye cups with position stops for eye relief. BAK-4 Roof prisms. System H2 optical system. Nitrogen purged - waterproof fog proof. 8x Magnification with 42mm Objective lens diameter. Eye relief: 0.7" / 18mm. Exit pupil: 0.21" / 5.3mm. Field of view (@ 1000yds): 367ft / 122M. Interpupillary distance: 2.2"-2.9" / 56-74mm. Tripod mounting thread: 1/4" - 20 UNC.