MPR-EC: Multi-Purpose Rail End Clamp

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Enhance lens stability with the Multi-Purpose Rail End Clamp; an efficient setup to reduce vibrations and provide ergonomic adjustments for secure lens support.

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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.


  • 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


Country of Origin: USA

  • Weight: 2.6oz/ 73g
  • Height: 2.7"/ 69mm
  • Length: 1.9"/ 47mm
  • Width: 0.9"/ 22mm

In The Box

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


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