What the thread found

• A broken locking ring on an EFP gimbal can be replaced through Tiffen, who maintains parts inventory for these systems.
• The locking ring is a removable component that can be replaced by splitting the post, threading it over the connecting wire, and reassembling the gimbal.
• Replacement of an EFP locking ring takes approximately ten minutes and costs around sixty-five dollars.
• The EFP is a lightweight Steadicam system originally designed for 16mm and video cameras that can be modified to work with larger film cameras.
• EFP rigs have been successfully operated with heavier cameras such as film cameras when rebuilt with updated electronics and batteries.
• Parts compatibility between EFP and other gimbal models like the Model III and III-A is limited and should not be assumed without verification.

Depends on

• The discussion contains conflicting claims about whether EFP gimbal components are interchangeable with Model III and III-A parts, with one participant asserting they cannot be swapped while another suggests trying compatibility.
• Information about Tiffen contact numbers and availability is from 2004 and may be outdated.
• The EFP has been replaced by newer rig designs and spare parts availability may have changed.
• One report of successful EFP operation with heavier equipment is anecdotal and from a single user.

Parts

Docking Ring

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