The 21.25" Multipurpose Cinema Rail from Really Right Stuff features a double dovetail design compatible with two RRS quick-release clamps. There are multiple 1/4"-20 and 3/8"-16 threaded holes spaced 15mm apart on the top and bottom of the rail for mounting accessories. Additionally, 1/4"-20 threaded holes spaced 9mm apart are featured on both sides of the rail.
Key Features:
- Laser-engraved markings 5mm apart
- Double dovetail design allows you to mount your camera via any RRS quick release clamp
- Multiple 1/4"-20 and 3/8"-16 threaded holes spaced 15mm apart on top and bottom of the rail
- 1/4"-20 threaded holes spaced 9mm on both sides
- Not compatible with accessories designed for the RRS CB-10, CB-18, and CB-28 camera bars