- Description
- Specifications
The William Optics FLAT 68III is a premium 1.0x field flattener for compatible William Optics refractors and full-frame astrophotography systems. It is designed to correct field curvature and improve star shape across large camera sensors without reducing focal length.
Who Is This Product Best For?
Best for astrophotographers using compatible William Optics refractors who want full-frame field correction while keeping the telescope’s native focal length.
Why Choose This Product?
- 1.0x correction: Maintains native focal length.
- Full-frame imaging support: Designed for larger camera sensors.
- Field flattening: Helps improve edge-to-edge star quality.
Recommended Uses
- Full-frame deep-sky astrophotography
- Compatible William Optics refractor imaging
- Improving corner star shape
Compatibility and Accessory Notes
Confirm your telescope model, adapter requirements, camera thread, and backfocus spacing before imaging.
Important Limitations
This is an imaging accessory and correct spacing is required for best results.
Our Recommendation
Choose the FLAT 68III when you need premium full-frame field correction without focal reduction.
| Product Type | Field flattener |
|---|---|
| Reduction Factor | 1.0x |
| Primary Use | Full-frame astrophotography field correction |
| Compatibility | Compatible William Optics refractors |
| Important Note | Correct backfocus spacing is required for best results |
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