William Optics 0.72x Reducer / Adjustable Field Flattener 8 for GT153, FLT 132 & 102GTS
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Revolutionary new WO x0.72 Adjustable Reducer/Flattener made for f/6 - f/7.8 refractors.
This high-quality flattener has been engineered and CNC machined for usage with William Optics' GT153, FLT 132, 102GTS, and other APO refractors. This accessory is a must-have for refractor astrophotography.
Lens
- ED Triplet APO Designed to cover full size DSLR cameras with clear lens aperture of 50mm
- STM coated with an excellent doublet air spaced design
- Produced entirely with the best Ohara optical glasses.
- Flattener Power: x0.72
- 45mm for full illuminated imaging circle
Amazing
- It will flatten the field amazingly well for round stars
- This unique flattener works with WO or other f/6 - f/7.8 refractors (please see item diagram above for connection specifications to adapt to other non-WO telescopes)
Superb Finish
- Superb William Optics anodized finish.
- All internal surfaces threaded and blackened for no reflections.
- Protective covers are included on both sides.
Easy to Use
- Will accept any wide T-ring for your camera (Thread size M48x0.75; not for use with smaller M42 T thread adapters with M42x0.75 threads).
- Suitable for GT102, FLT 132, 102GTS (with minimum 3” focuser and our custom made by Feather Touchfocuser) with focuser M92x1.0 thread.
Compatibility:
- Fluorostar 132
- Back Focus: 63.4mm
- Adjust Distance: 8.4mm
- Image Circle: ∅44.4mm
- Fluorostar 156
- Back Focus: 60.8mm
- Adjust Distance: 5.8mm
- Image Circle: ∅44.4mm
- Gran Turismo 102
- Back Focus: 67.1mm
- Adjust Distance: 12.1mm
- Image Circle: ∅44.4mm
- Gran Turismo 153
- Back Focus: 60.4mm
- Adjust Distance: 5.4mm
- Image Circle: ∅44.4mm
Specifications:
- Lens Type: 3 Groups 3 Elements
- Length: 77 mm
- Telescope Thread: M92 x 1 x 7.5 mm
- T-mount Thread: M48 x 0.75 x 4 mm
- T-mount Supported: Canon EF, RF; Nikon F, Z; Sony E; Pentax K; MFT (M4/3); FUJI X
- Camera Format: > Full Frame
- Weight: 1098 g / 2420.67 lbs
Other Information
- Country of Manufacture: Taiwan
Revolutionary new WO x0.72 Adjustable Reducer/Flattener made for f/6 - f/7.8 refractors.
This high-quality flattener has been engineered and CNC machined for usage with William Optics' GT153, FLT 132, 102GTS, and other APO refractors. This accessory is a must-have for refractor astrophotography.
Lens
- ED Triplet APO Designed to cover full size DSLR cameras with clear lens aperture of 50mm
- STM coated with an excellent doublet air spaced design
- Produced entirely with the best Ohara optical glasses.
- Flattener Power: x0.72
- 45mm for full illuminated imaging circle
Amazing
- It will flatten the field amazingly well for round stars
- This unique flattener works with WO or other f/6 - f/7.8 refractors (please see item diagram above for connection specifications to adapt to other non-WO telescopes)
Superb Finish
- Superb William Optics anodized finish.
- All internal surfaces threaded and blackened for no reflections.
- Protective covers are included on both sides.
Easy to Use
- Will accept any wide T-ring for your camera (Thread size M48x0.75; not for use with smaller M42 T thread adapters with M42x0.75 threads).
- Suitable for GT102, FLT 132, 102GTS (with minimum 3” focuser and our custom made by Feather Touchfocuser) with focuser M92x1.0 thread.
Compatibility:
- Fluorostar 132
- Back Focus: 63.4mm
- Adjust Distance: 8.4mm
- Image Circle: ∅44.4mm
- Fluorostar 156
- Back Focus: 60.8mm
- Adjust Distance: 5.8mm
- Image Circle: ∅44.4mm
- Gran Turismo 102
- Back Focus: 67.1mm
- Adjust Distance: 12.1mm
- Image Circle: ∅44.4mm
- Gran Turismo 153
- Back Focus: 60.4mm
- Adjust Distance: 5.4mm
- Image Circle: ∅44.4mm
Specifications:
- Lens Type: 3 Groups 3 Elements
- Length: 77 mm
- Telescope Thread: M92 x 1 x 7.5 mm
- T-mount Thread: M48 x 0.75 x 4 mm
- T-mount Supported: Canon EF, RF; Nikon F, Z; Sony E; Pentax K; MFT (M4/3); FUJI X
- Camera Format: > Full Frame
- Weight: 1098 g / 2420.67 lbs
Revolutionary new WO x0.72 Adjustable Reducer/Flattener made for f/6 - f/7.8 refractors.
This high-quality flattener has been engineered and CNC machined for usage with William Optics' GT153, FLT 132, 102GTS, and other APO refractors. This accessory is a must-have for refractor astrophotography.
Lens
- ED Triplet APO Designed to cover full size DSLR cameras with clear lens aperture of 50mm
- STM coated with an excellent doublet air spaced design
- Produced entirely with the best Ohara optical glasses.
- Flattener Power: x0.72
- 45mm for full illuminated imaging circle
Amazing
- It will flatten the field amazingly well for round stars
- This unique flattener works with WO or other f/6 - f/7.8 refractors (please see item diagram above for connection specifications to adapt to other non-WO telescopes)
Superb Finish
- Superb William Optics anodized finish.
- All internal surfaces threaded and blackened for no reflections.
- Protective covers are included on both sides.
Easy to Use
- Will accept any wide T-ring for your camera (Thread size M48x0.75; not for use with smaller M42 T thread adapters with M42x0.75 threads).
- Suitable for GT102, FLT 132, 102GTS (with minimum 3” focuser and our custom made by Feather Touchfocuser) with focuser M92x1.0 thread.
Compatibility:
- Fluorostar 132
- Back Focus: 63.4mm
- Adjust Distance: 8.4mm
- Image Circle: ∅44.4mm
- Fluorostar 156
- Back Focus: 60.8mm
- Adjust Distance: 5.8mm
- Image Circle: ∅44.4mm
- Gran Turismo 102
- Back Focus: 67.1mm
- Adjust Distance: 12.1mm
- Image Circle: ∅44.4mm
- Gran Turismo 153
- Back Focus: 60.4mm
- Adjust Distance: 5.4mm
- Image Circle: ∅44.4mm
Specifications:
- Lens Type: 3 Groups 3 Elements
- Length: 77 mm
- Telescope Thread: M92 x 1 x 7.5 mm
- T-mount Thread: M48 x 0.75 x 4 mm
- T-mount Supported: Canon EF, RF; Nikon F, Z; Sony E; Pentax K; MFT (M4/3); FUJI X
- Camera Format: > Full Frame
- Weight: 1098 g / 2420.67 lbs
Other Information
- Country of Manufacture: Taiwan
| Product Status | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
William Optics 0.72x Reducer / Adjustable Field Flattener 8 for GT153, FLT 132 & 102GTS