The CINEfocus Pro Follow Focus is used as a focusing aid giving precise and accurate control over the focus of your 35mm lenses. This Dual Sided version allows you to control focus from either side of the camera which is perfect for film crews with A/C's or for when access might be restricted to one side of your camera rig. The Dual Sided Handle can be removed from the CINEfocus Pro Follow Focus if you would like to use it as the Single Sided version and then reconnected as required.��� A/B Hard Stops (Can be removed and stored at the front of the focus knob)��� Reversible Gear Direction (great for Nikon Lenses)��� Swing Arm Design��� Drive Gear mountable on either side of Swing Arm��� Adjustable Dampening��� Quick Release Rods Mount��� Single & Dual Sided VersionsOther Features:��� 360 Adjustable Pointer��� 3D Removable Marking Disk��� 0.8 Mod (cine pitch) Drive Gear��� Custom Designed Gearbox��� Standard Accessory Port���Adjustable Backlash (prolongs the life of the follow focus, securing your investment���To fit Rods Diameter: 15mm (60mm centre to centre), CNC Machined Aluminium, Black & Red Anodised