SUNWAYFOTO DPG-3016R 300mm Double Dovetail Macro Rail Arca / RRS Compatible Ideal for Stereo / 3D Sunway

SUNWAYFOTO brand Arca-Swiss compatible. Multi-Purpose Rail DPG-3016 with Double Arca Dovetails. Arca-Swiss & RRS Lever clamp compatible .Precision CNC machined nodal slide. Compatible with all Arca-swiss style quick-release plates. Accurately find nodal point for panoramic photography.For close-up photography, slide thecamera in and out without moving the tripod.Double Dovetail allows you to mount the rail to an arca clampand combine with the bi-directional clamp for incredible versatility. Width: 39mm.Length: 300mm.Height: 16mm.Weight: 254g.Mounting holes: 4 x 1/4"-20, 1 x 3/8"-16. Feautures: 1. Precision machined from solid aircraft-grade aluminum. 2. Hard -anodized finish, durable and resists scratches. 3. Includes 4 metal stops. 4. Easy-recognized laser-engraved scale on both sides of the rail to adjustthe nodal point conveniently and accurately. 5. Safety stop screws included. All metal construction. Includes all the screws and tools pictured.