Optika5 2-10x42 PA Scope (Adjustable Parallax) Excellent scope designed for high power rifles, with 1 inch tube, the scope has MeoBright lens coatings for optimal light transmission and MeoDrop water repellent hydrophobic coating. Model PA, with adjustable parallax from 10 yards to infinity and the classic veteran Z-Plex reticle, with ¼ MOA adjustments, make this scope a great option for short and medium throw distances. CHARACTERISTICS: - 10-year warranty. - Waterproof. - Magnification: 2 - 10 x - Objective lens: 42 mm - Main tube size: 25.4 mm - Eye / eye distance (mm / in): 92 // 3.6 - Field of view (m / 100m // ft / 100yds): 18.6-3.8 // 55.7-11.5 - Field of view: 10.6 - 2.2 ° - Focal plane position: 2 - Daylight transmission: 91% - Impact per click (cm / 100 m // in / 100yds): 0.7 // 0.26 - Elevation and wind adjustment range (cm / 100 m // in / 100yds): 75 // 63 - Parallax correction : 10 yd - infinity - Length (mm / inch): 308 // 12.1 - Weight (g / oz): 590 // 20.8 - Nitrogen Filled. - MeoBright 5501: Patented ion-assisted lens multi-coating applied to all optical surfaces. Developed by Meopta, MeoBrightTM ionization-assisted multi-coatings eliminate glare and reflections and provide industry-leading 99.7% light transmission per lens surface.