Focusing Rail Slider Close-up Shooting Tripod Head Quick Release Plate Holder for DSLR Camera black

Description

Precision CNC machined from solid aircraft Aluminum, light weight.The rail is driven by a knob-controlled worm gear and index scales, in millimeters, are printed on both sides of the rail for consistency.Sliding speed adjustable, you can slide slowly or you can go fast. Screw-knob with CNC cutting texture, for better gripping.Cameras can be mounted on top of the rail via the integrated 1/4 inch screw, which uses a 48mm-diameter thumbwheel to secure cameras in place.