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

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.