The range of NIKKO STIRLING Targetmaster 10-50x60 SF Rifle Scope, Illuminated Mil-Dot Mil-Dot Reticle (NSTT105060MD) allow the user to adjust the magnification required to suit their needs. The main body of the scope is a 30mm hard alloy tube that provides added strength and light transmission over one inch riflescopes. The lenses are coated ETE Microlux coatings, which allow maximum light transmission to your eyes so you see the target faster, clearer and with more contrast. The Adjustments are Target style, to adjust simply pull out gently and turn to the desired setting. Push down again to lock. You can also return the dial setting to Zero with out special tools so you can be ready in the field to accurately compensate as required for both windage and elevation. All Targetmaster riflescopes feature Side Parallax and focus adjustment. This is easily achieved in with the side adjustments compared to objective adjusting riflescopes. Also located on the side is the switch for the illumination of the reticle. This looks much neater and allows quick adjustments in the field. Fast focus eyepieces allow you to adjust the scope to suit your eye strength. All Targetmaster riflescopes are supplied with a 100mm sunshade and you can choose one of the optional large wheels that suit your needs. Either 100mm or 150mm diameter. Dust Coves are also supplied.