Canon's 70-200 T4.4 CN-E Compact-Servo Cinema Zoom Lens EF Mount features the functionality of an EF lens with the performance of a cine CN-E lens. This lens is to be used on APS-C or Super 35 sized sensors like the Canon C100 Mark II, C200, C300 Mark II, RED RAVEN, or BlackMagic URSA Mini Pro. It is not to be used on full-frame bodies. This lens gives you a wonderfully useful range of 70-200mm with a constant T-stop of T4.4 (f/4) throughout the entire zoom range. Its parfocal design maintains focus during zoom. The lens is quite svelte for ENG standards, measuring 7.2" long and weighing under 3 lbs. The lens has a threaded front diameter of 77mm, perfect for adding a Vari-ND filter. We include the ZSG-C10 Control Grip which provides a true ENG-style zoom rocker with adjustable zoom speed. Power to the servo is provided directly through the EF lens mount, no external power required! This lens is also a Canon first to combine a cine-style lens with Image Stabilization and autofocus functionality when used with Cinema EOS cameras like the C100 Mark II, C200, and C300 Mark II. This lens is compatible with Canon's 1.4x and 2x Extenders for extra reach.