William Optics 45mm Flattener Extender

The William Optics 45mm Flattener Extender is a mechanical extension adapter used to achieve the required spacing between compatible William Optics refractors, flatteners/reducers, and camera systems.

Who Is This Product Best For?

Best for astrophotographers configuring a William Optics imaging train that requires a 45mm extension adapter for the correct flattener or reducer spacing.

Why Choose This Product?

• 45mm extension: Helps achieve proper mechanical spacing.
• Astrophotography setup support: Useful when configuring flatteners, reducers, and camera adapters.
• William Optics compatibility: Designed for compatible WO imaging systems.

Recommended Uses

• Flattener/reducer spacing
• Camera train setup
• Deep-sky astrophotography accessories

Compatibility and Accessory Notes

Confirm your exact telescope, flattener/reducer, and camera thread requirements before purchase.

Important Limitations

This is a mechanical adapter only. It does not provide optical correction by itself.

Our Recommendation

Choose this adapter when your William Optics imaging train requires a 45mm spacing extension.