Simmod M42 Lens to ARRI LPL Camera Conversion Mount

Mirrorless mounts were not designed for large-format cinema interfaces.
This system converts that interface into one.

The Simmod SimMount Micro Four Thirds to LPL Conversion Mount is a precision-engineered solution that converts Micro Four Thirds (M4/3) mount lenses or camera interfaces into a native LPL mount, enabling integration with LPL-based cinema systems and workflows.

A Direct Mechanical Interface

This is not a flexible adapter system.

This is a fixed mechanical interface designed to create a rigid connection between the M4/3 platform and the LPL standard.

Once installed, the system provides a solid, unified mount, reducing tolerance stacking and improving overall mechanical stability between lens and camera.

LPL System Integration

The LPL mount standard, developed for modern cinema cameras, is designed to support:

• Larger sensor formats

• Increased mechanical load from accessories

• Positive-locking mount engagement

By converting to LPL, this system allows Micro Four Thirds-based setups to interface with LPL-mounted cameras or LPL adapter systems, aligning them with current cinema mounting standards.

Construction and Materials

• Manufactured from solid brass and/or anodized aluminum components

• CNC-machined for dimensional accuracy

• Matte black finish to reduce internal reflections

Simmod conversion systems are designed to maintain a tight, play-free fit while preserving mechanical alignment. (simmod)

Mechanical Performance

• Maintains flange focal distance required for LPL systems

• Preserves infinity focus when properly calibrated

• Ensures coaxial alignment between lens and camera

• Designed to minimize flex under load

Conversion systems of this type provide a robust connection between lens and camera body, improving stability in production environments. (The American Society of Cinematographers)

Installation

• Mount installs directly onto the existing M4/3 interface

• Secured using supplied hardware

• May require removal of original mount components depending on configuration

Proper tools and handling are recommended during installation.

System Behavior

• Fully mechanical conversion, no electronic communication

• Does not alter optical characteristics of the lens

• Converts mounting interface only

Notes

• LPL mount is not compatible with PL cameras

• Conversion modifies the original mounting interface

• Calibration may be required for optimal focus accuracy

A mechanical conversion system designed to integrate Micro Four Thirds platforms into LPL-based cinema systems while maintaining alignment, rigidity, and functional accuracy.