Simmod Olympus Zuiko OM to EF Conversion Mount

Vintage Olympus OM lenses were designed for a compact still photography system.
This conversion brings them into a modern large-format cinema workflow.

The Simmod SimMount Olympus Zuiko OM to LPL Conversion Mount is a precision-engineered mount replacement that converts Olympus OM lenses into a native LPL interface, enabling use on LPL-based cinema cameras and adapter systems.

A True Mount Conversion

This is not an adapter placed between lens and camera.
This is a direct mount replacement system.

The SimMount replaces the original Olympus OM mount with a fixed LPL interface, creating a rigid mechanical connection without introducing additional tolerance from intermediary components.

Designed for Olympus OM Lenses

The system is built specifically for Olympus Zuiko OM lenses, allowing their optical characteristics to be used within a modern cinema mounting standard.

Compatibility exclusions apply to certain lenses with non-standard rear designs.

Precision Engineering

Each mount is CNC machined to maintain:

• Accurate flange focal distance
• Infinity focus capability
• Proper mechanical alignment between lens and camera

The mount is designed to provide a consistent and repeatable interface under use.

Construction

• Manufactured from solid brass
• Matte black finish to reduce internal reflections
• Machined for dimensional accuracy and secure fit

Mechanical Performance

• Fixed LPL mount interface
• Positive locking engagement with LPL systems
• Reduced mechanical play compared to adapter-based solutions
• Maintains alignment under load

Installation

• Removal of original Olympus OM mount required
• SimMount installed using supplied hardware
• Heat may be required to release factory thread-lock on screws
• Proper tools recommended for installation

System Characteristics

• Fully mechanical conversion
• No electronic communication
• No changes to optical design

Notes

• Not compatible with certain OM lenses with unique rear elements or mount geometry
• Conversion modifies original mount configuration
• LPL mount is not compatible with PL mounts

A mechanical mount conversion designed to integrate Olympus OM lenses into LPL-based systems with maintained alignment and structural integrity.