Its internal construction has an improvement to reach a high level in this field, with a shock-absorbing gearbox that allows less backlash (or even zero backlash), even better than most followspots on the market. The gears on it can be removed and mounted on either side, which makes it suitable for both left and right handed photographers. The attachment mount to the gear is not only the latest version but also the last upgrade. The white marking ring is made of a magnet material. It can be easily and quickly removed from or fitted to the focus follower. You can also purchase additional marker rings. There is a release button on the side for easy positioning of the focus point. Another advantage of this focus follower is that it can be used with different sized gears. It can be used with 3 different sizes of gears to suit your different needs for various lenses and we will ship the standard 43T. Functional features. 1. Precise focusing 2. Professional feel with outstanding damping design 3. Drive swivel can be mounted front and rear, suitable for a variety of lenses 4.Can control the focuser on the left and right according to the usage habit 5. Suitable for lenses from 52mm to 86mm 6. With AB limit function Product description. The focus followers are mainly used for DSLR digital cameras and camcorders to adjust the focus of the lens when shooting video, usually used in conjunction with the bracket. It is quick and easy to install, can be fitted with international standard rails and can be used with a wide range of lens diameters and has an outstanding damping design. Using the focuser, the focus is adjusted accurately and naturally, making it extremely convenient for the cameraman to focus quickly and accurately, making film and video shooting more efficient and convenient. Models used. All DSLR cameras and home DV cameras. Materials. Aircraft aluminium, ABS plastic. Product list: focuser*1, focus ring*1, wrench*1, manual*1