William Optics Field Flattener 68 II - P-FLAT68II

If you need this field flattener for your William Optics refractor, get it now!  We only have one left!

William Optics Field Flattener 68 II

• Designed to cover full size DSLR cameras with clear 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)
• 45 mm for full illuminated imaging circle
• Flattens the field amazingly well and lets you see those stars round
• This flattener works with WO or other f/6-7.5 F-ratio refractors
• Will accept any standard T-ring for your camera (thread size M48x0.75)
• Suitable for FLT98, FLT110, FLT132, GT102 (with 3” focuser) and many others refractors with focuser M92x1.0 thread

This revolutionary new WO FF 68II Adjustable Flattener was made for 6 - 7.5 f-ratio refractors. This high-quality flattener has been engineered and CNC machined for usage with William Optics FLT 98, 110, 132, GT102 and other APO refractors. This lens is a must-have accessory for amateur astronomers doing astrophotography with refractors.

The William Optics Flattener 68 II is designed to cover full size DSLR cameras with a clear aperture of 50 mm. It flattens the image plane and provides round star images while producing an image with x1 magnification, i.e. it does not cause any image reduction. It includes an adjustable feature with a knurled ring for easy setting.

This William Optics Flattener 68 II is suitable to use with FLT98, FLT110, FLT132, GT102 (with 3” focuser) and many others refractors with a focuser which has an M92x1.0 thread

Specifications:

• Weight: 875 grams
• Flattener Power: 1x (causes no reduction in image size)
• 45 mm for full illuminated imaging circle
• Cover full size DSLR cameras with clear aperture of 50 mm
• STM coated with an excellent doublet air spaced design
• Uses the best Ohara optical glasses
• Works with William Optics or other f/6 - f/7.5 refractors
• Accepts any standard T-ring for your camera