William Optics Zenithstar 81 APO

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About this product

The NEW William Optics Zenithstar 81 APO features an air-spaced doublet lens with an Ohara FPL-53 ED glass element in a CNC machined ultra-high precision lens cell with fully multi-coated optics for high resolution, high contrast images virtually free of false-colour. 

Versatile f/6.9 native focal ratio or f/5.5 when used with 0.8x flattener/reducer (available separately).

Supplied with a Dualside dovetail (Vixen fit one side and Arca-Swiss on the other side), mounting rings and a new carry handle that a guidescope can slide into.

CNC machined aluminium for a superior fit and finish. 

Heavy duty, 1:10 dual speed, 2.5" Rack and Pinion focuser.

Available in Blue, Red, or Gold anodised.  

Field of View Simulator

What's in the box

• Telescope OTA
• Mounting Rings
• CNC made Carry Handle
• Dual Vixen / Arca Swiss Dovetail
• Bahtinov Mask Cover

Specifications

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