SIMMOUNT CONTAX ZEISS PRIME to LPL CONVERSION MOUNT

Simmod SimMount Contax Zeiss to LPL Conversion Mount

Vintage glass carries character. Modern cinema demands precision.
This is where the two meet.

The Simmod SimMount Contax Zeiss to LPL Conversion Mount is engineered to transform classic Contax Zeiss lenses into native LPL-mounted cinema tools, allowing them to perform with the stability, alignment, and confidence required in today’s large-format production environments.

A True Mechanical Conversion

This is not an adapter sitting between systems.
This is a complete mount replacement.

The SimMount system removes the original Contax/Yashica mount and replaces it with a solid LPL interface, effectively converting your lens into a native LPL lens. The result is a direct, rigid connection that eliminates the weaknesses commonly associated with intermediary adapters.

Adapters solve fit. Conversions solve performance.

Built Around the LPL Standard

The LPL mount, developed by ARRI, was designed for modern cinema cameras with larger sensors and higher mechanical demands.

By converting Contax Zeiss lenses to LPL, this system:

• Provides a positive-locking mount for maximum stability

• Supports heavier rigs, motors, and accessories without flex

• Aligns vintage optics with modern large-format camera systems

This is about bringing legacy lenses into a professional ecosystem without compromise.

Precision Engineering, Reliable Performance

Each SimMount is machined to exact tolerances, ensuring:

• Accurate flange distance

• Maintained infinity focus

• Proper optical alignment across the image plane

The mount is designed to remain stable under real production conditions, from handheld work to fully built-out cinema rigs.

A lens is only as reliable as its mount. This system ensures both.

Designed for Cine Workflows

Contax Zeiss lenses are widely respected for their rendering, contrast, and color separation. But their original mount limits their usability in high-end cinema setups.

With the SimMount conversion:

• Lenses integrate directly into modern LPL camera ecosystems

• Stability improves when using follow focus motors and accessories

• Focus accuracy and repeatability are preserved

• Lens changes become faster and more consistent on set

Integration with the Simmod System

This conversion is part of a broader philosophy.

When combined with other Simmod modifications such as:

• Front cine rings for standardized diameters

• Focus gears for controlled operation

• Declicked apertures for smooth exposure transitions

The result is a lens that behaves like a purpose-built cinema optic, not a modified still lens.

The Simmod Approach

Simmod was built on the idea of making lens modification more accessible and performance-driven for filmmakers. The SimMount Contax Zeiss to LPL Conversion Mount reflects that foundation. It is not about forcing compatibility. It is about refining the entire system so that every component works together with intention.

A classic lens, redefined for modern cinema.