SteadiHub
2015Camera Stage/Donkey Box forum

Longplate accessory mounting solution for camera stabilization rigs

What the thread found

  • The Longplate is a universal mounting plate designed to work with multiple camera bodies and stage types including Steadicam, GPI/PRO, XCS, Sachtler, and Betz stages.
  • The device provides multiple mounting points on the underside and behind the camera body to attach transmitters, follow focus rods, ring lights, and other accessories while lowering the overall center of gravity.
  • Using the Longplate can reduce vibration by consolidating accessory mounting points and eliminating the need for rental house camera plates that may introduce vibration.
  • The plate accepts both 1/4-20 and 3/8-16 machine screws with custom-cut washers provided.
  • For Medium Tiffen stages like Zephyr and Archer, Delrin spacers must be used between the camera plate and Longplate to prevent locking issues with the stage.
  • The design allows camera mounting without additional riser blocks by using threaded washers at the rear mounting point.
  • The Longplate is compatible with multiple camera bodies including Alexa, Amira, and Sony broadcast cameras.
  • The device is not recommended for upside-down low mode operation due to safety concerns with the rear washer tightening.

Depends on

  • A note was added recommending against using the Longplate in low mode configuration.
  • The product was still in early production with limited units available at the time of discussion.
  • Compatibility requires confirmation for specific camera models and stage combinations.
  • The design was being actively refined based on operator feedback.
  • Not all stage types were fully tested with the accessory.

Gear in this thread

Zephyrcatalog

Parts

Low Mode, Follow Focus

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