William Optics Flattner/Reducer

New ! Adjustable Flat73A for William Optics f/5 to f/7 telescopes

• Universally applicable for telescopes between f/5 and f/7
• Focusing travel is adjustable
• M63 thread on telescope side
• M48 thread on camera side
• Integrated M48 filter thread

New ! Adjustable Flat61 for William Optics ZS61 II Telescopes

• Compensates for field curvature and enables sharp images at the edges
• Camera can be mounted directly with M48 camera adapter
• Suitable for refractors from f/5 to f/7
• Distance to chip plane is variably adjustable