William Optics ZenithStar 81mm f/6.9 Imaging APO Refractor FPL-53 ED APO Doublet Astrophotograph
William Optics ZenithStar 81mm f/6.9 Imaging APO Refractor FPL-53 ED APO Doublet Astrophotograph - Australian Authorised dealer
Add a T mount for your DSLR camera here.
Carrying case is included.
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 Dualside dovetail (Vixen fit one side and Arca-Swiss on the other side), mounting rings and a new carry handle bar 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.