William Optics Ultra Flat 156 (0.79x reducer)

$898.00
Article number: P-FLAT-156
Availability: More on the Way to us
Delivery time: More on the Way to Us

The William Optics Ultra Flat 156 (0.79x) is a premium optical accessory engineered for astrophotographers who demand flawless edge-to-edge performance. It reduces focal length while correcting field curvature, making it perfect for full-frame imaging with large refractors like the FLT156.

Key Features:

  • 0.79x Focal Reduction — Expands your field of view and speeds up exposures for deep-sky imaging.

  • Integrated Field Flattener — Delivers crisp, flat stars across the entire image circle, including full-frame sensors.

  • Optimized for Larger Refractors — Ideal for telescopes such as the William Optics FLT156.

  • Fully Multi-Coated Optics — Maximum light transmission with minimized reflections and aberrations.

  • Durable CNC-Machined Body — Precision construction with a sleek anodized finish.

  • 48mm Filter Thread — Built-in filter thread for easy attachment of standard 48mm filters.

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