William Optics Flattener FLAT68III
The William Optics Flattener 68III was made for 6 -7.5 F ratio refractors. This high-quality flattener has been engineered and CNC machined for usage with our FLT 132, 102GTS and other APO refractors. This accessory is a must-have for refractor astrophotography.
Lens
• Designed to cover full size DSLR cameras with clear lens aperture of 50 mm
• STM coated with an excellent doublet air spaced design.
• Produced entirely with the best Ohara optical glasses.
• Flattener Power: 1x (no reduction).
• 45mm for full illuminated imaging circle.
Amazing
• It will flatten the field amazingly well and finally make you see those stars round!
• This unique flattener works with WO or other 6-7.5 F ratio refractors.
Superb Finish
• Superb William Optics anodized finish.
• All internal surfaces threaded and blackened for no reflections.
• Protecting covers are included on both sides.
Easy to Use
• Will accept any standard T-ring for your camera (thread size M48x0.75).
• Suitable for FLT 132, 102GTS (with 3” focuser) and many others refractors with focuser M92x1.0 thread.
Adjust Distance
102GTS |
13.6mm |
Z126 |
3.0mm |
FLT132 |
7.7mm |
GT153 |
2.8mm |
Technical Specifications
Telescope Side Connection |
M92x1 Thread- Male |
Camera Side Connection |
M48x0.75 Thread- Male |
Back Focus |
GT102: 68mm
Z126: 61m
FLT132: 62.5mm
GT153: 57.6mm
|
Image Circle |
45mm |
In the Box
- William Optics Flattener FLAT68III
Warranty & Manuals
William Optics 2-Year Warranty