Simmod ARRI LPL to Canon RF-Mount Cine Pro Adapter

Large-format cinema lenses and mirrorless camera systems are built around different mechanical standards. This adapter establishes a fixed interface between the two.

The Simmod ARRI LPL to Canon RF-Mount Cine Pro Adapter is a precision-machined adapter designed to mount ARRI LPL lenses onto Canon RF-mount cameras while maintaining proper flange distance and mechanical alignment. 

Mount Interface

• Lens mount: ARRI LPL
• Camera mount: Canon RF

The adapter installs between the lens and camera body, allowing LPL-mounted cinema lenses to operate on RF-based camera systems.

Mechanical Design

The adapter is designed around a rigid mechanical structure intended for cine lens support and alignment.

• Positive-locking LPL interface
• Fixed RF mount connection
• Reduced rotational play and mount movement
• Designed for use with heavier cinema lenses and support systems

Construction

• Solid brass body construction
• Chrome-plated mount surfaces
• Satin exterior finish
• Internal felt flocking to reduce reflections and stray light 

The adapter is CNC machined to maintain dimensional consistency and fit accuracy.

Mechanical Performance

• Maintains proper registration distance for LPL to RF conversion
• Supports infinity focus calibration
• Includes shim set for flange depth adjustment
• Designed to maintain optical alignment between lens and sensor 

Shim adjustment allows fine-tuning for camera and lens tolerances.

Support System

An optional support collar is available for additional lens support.

• Billet aluminum construction
• 360-degree adjustable collar design
• Integrated:
  • 1/4"-20 thread
  • 3/8"-16 thread

The support system is intended to reduce stress on the camera mount when using heavier lenses. 

Dust Protection

Because standard RF body caps cannot attach directly to the adapter, the system includes a removable locking dust cover.

This allows:

• The adapter to remain mounted on the camera
• Sensor protection during transport or storage
• Faster lens changes within configured setups 

System Behavior

• Fully mechanical adapter
• No electronic communication between lens and camera
• Manual lens operation only
• Does not alter optical characteristics of the lens

Notes

• Designed specifically for ARRI LPL lenses and Canon RF cameras
• Intended for cinema workflows involving support systems and follow focus accessories
• Calibration may be required for optimal flange depth accuracy

A mechanical adapter designed to integrate ARRI LPL lenses into Canon RF-mount camera systems while maintaining alignment, rigidity, and focus accuracy.