William Optics Zenithstar 81 APO WIFD

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About this product

Now includes a useful slip-on Bahtinov focus mask and a carry handle that accepts an optional guidescope. 

The William Optics Zenithstar 81 APO features air-spaced ED doublet optics with an Ohara FPL-53 glass element in a robust CNC-machined lens cell.  

Premium, fully multi-coated optics deliver high-resolution, high-contrast images virtually free of false colour. 

The versatile f/6.9 native focal ratio can be reduced to f/5.5 when used with a 0.8x flattener/reducer (available separately).

CNC machined aluminium throughout for a superior fit and finish and fitted with a heavy-duty, 2.5", 1:10 dual-speed, Rack & Pinion focuser. 

Supplied with a Dualside dovetail (Vixen fit one side, Arca-Swiss on the other), mounting rings and a soft carry/storage case. 

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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