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Multi-Purpose Rail End Clamp | MPR-EC



Multi-purpose rail end clamp for long lenses.


The Multi-purpose Rail End Clamp (MPR-EC) is used to solidly stabilize the barrel of your lens on the end of a Multi-Purpose Rail or MPR-Cinema Rail with our Long Lens Support Bracket*. All of these products make up our Long Lens Support Package, which is the most efficient setup to decrease vibrations with a long lens. Our tests show up to a 15% resolution improvement with the CB-YS over only using a mounting long lens foot. The ergonomic lock knob on the MPR-EC allows for quick and easy adjustments of the lens support bracket height, as well as quickly releasing the lens support for compact transport.

*All parts are sold separately or together in our Long Lens Support Package.


  • CNC machined 6061-T6 Aluminum
  • Anodized; Type II Black
  • Laser engraved RRS logo
  • Low-profile design
  • Compatible with MPR and MPR-Cinema rails; mounts using included four B202 screws
  • Easily attach CB-YS lens support
  • RRS Dovetail allows for fine adjustment of lens support height
  • Ergonomic lock knob
  • Specs

    1. Weight: 2.6oz/ 73g
    2. Height: 2.7"/ 69mm
    3. Length: 1.9"/ 47mm
    4. Width: 0.9"/ 22mm

    In the Box

    1. (1) MPR-EC
    2. (4) B202 Modified 1/4-20 Flathead Screw for MPR-V
    3. (1) 5/32" hex key
    4. (1) User's guide