Ajustable field flattener designed for William Optics FLT 98, 110, 132, GT102, and other apochromatic refractor telescopes with f-ratios of between 6 and 7.5. An essential accessory for refractor astro-imaging, the WO 68II Flattener will at long last allow you to see round stars.
Lens
• Designed to cover full size DSLR camers with 50 mm clear lens aperture.
• STM coated with a superb doublet air spaced design.
• Made completely with the finest Ohara optical glass.
• 1x flattener power (no reduction).
• 45 mm for entirely illuminated imaging circle.
Elegant Finish
• Elegant William Optics anodized finish.
• Every internal surface is threaded and blackened to prevent reflections.
• Comes with protective covers for both sides.
User-Friendly
• Accepts any standard camera T-ring (M48x0.75 thread).
• Designed and CNC machined to be used with WO FLT 98, 110, 132, GT102, and several other apochromatic refractors.
