Newcon Optik's 3-12x56 Side Focus Riflescope is designed with durability and performance in mind for both tactical and hunting applications. The optics feature multi-coatings that deliver clear and crisp images with a great level of detail. The optical elements are carefully designed and cut from high quality optical glass and polished for low-distortion performance. To expand the effectiveness of your range in the most challenging of lighting conditions, like dusk or dawn, this riflescope also features an extra-wide 56mm objective lens. To empower you with laser precision when making your shots, the optic is enhanced with an illuminated Mil-Dot reticle, located in the 2nd focal plane. The housing is engineered from high-strength aluminum and coated with a hard anodized finish. It features a 30mm maintube and graduated, finger-operated windage and elevation turrets with a side focus parallax corrector knob. The knurled easy-focus eyepiece provides a long 4" eye relief. The overall design incorporates a fogproof and waterproof performance and will withstand extreme conditions for years of service.Red Mil-Dot Illuminated Reticle2nd focal plane Four thin posts Thin crosshair Red LED illumination 7 brightness levels Parallax free from 50m to infinityOptical PerformanceMulti-coated optics 56mm objective for exceptional brightness in low-light conditions Linear field of view: 36-9' at 100 yards Long eye relief of 4" Diopter: +3 to -3Use and Handling1 MRAD impact point correction 120 MRAD windage and 340 MRAD elevationConstruction Details30mm single-piece tube High-strength aluminum housing Finger-operated graduated turrets Fogproof, nitrogen-filled Side focus parallax corrector Temperature rating: -58 to 122°F Waterproof and fogproof Built-in sunshade Shock-resistant