Flashpoint Follow Focus Pro II premium system provides quick and accurate focus pulls with any DSLR and lens combination. Creates professional level shift effects, imparts atmosphere, and smooth sophisticated perspective changes in HD video recording. Simply attach the adjustable gear collar onto the lens barrel, mate the follow focus drive mechanism to the gear collar and setup your shot. The generous master gear is a stepdown radial dial for translating gross rotation to very fine, subtle adjustments, not obtainable with direct focus control on a lens. By noting the start and finish of the shot with the generous erasable marking surface, exacting focus pulls are achieved. Using rotating A/B hard-stop markers, a cameraman can independently hit the proper sharpness during filming at the appropriate frame, again and again, without ever overcranking. The completely slip-free gear drive design is mountable from either side for right or left handed operators. Flashpoint Follow FocusPro II is compatible with Nikon, Canon and many more popular DSLR's for great HD filming.