William Optics Ultra Flat 156 0.79x Reducer

The William Optics Ultra Flat 156 is a premium 0.79x reducer/flattener designed for compatible Fluorostar 156 astrophotography systems. It reduces focal length, speeds up imaging, and helps produce a corrected image field for deep-sky imaging.

Who Is This Product Best For?

Best for astrophotographers using the Fluorostar 156 who want faster imaging and a wider field of view for large camera sensors.

Why Choose This Product?

• 0.79x reduction: Speeds up the optical system and widens the field.
• Field correction: Helps improve star shape across the imaging frame.
• Large refractor support: Designed for compatible high-end William Optics imaging systems.

Recommended Uses

• Deep-sky astrophotography
• Fluorostar 156 imaging
• Full-frame and large-sensor camera setups

Compatibility and Accessory Notes

Confirm telescope compatibility, camera thread, adapter requirements, and backfocus spacing before imaging.

Important Limitations

Correct spacing is required for best results. This is an imaging accessory, not a visual accessory.

Our Recommendation

Choose the Ultra Flat 156 when imaging with a compatible Fluorostar 156 and you want faster, wider-field deep-sky performance.