SunwayfotoDMP-140R Multi-Purpose Rail Nodal Slide with screw-knob clamp, CNC cutting machine from light weight aircraft-grade aluminum, stain anodized surface finish for better abrasion and corrosion resistant. Compatible with all Arca-Swiss style plates.
It is widely used for fish-eye-lens and wide-angle lens.
The most important function of this product is accurately find nodal point for panoramic photography. For close-up photography, slide the camera in and out without moving the tripod.