(Withdrawn from Sale) : William Optics ZenithStar 66 f/5.9 SD Doublet APO OTA

UniPol · #1 22-12-2007, 05:25 PM

Pristine condition Z66 SD doublet with 2 speed 10:1 micro-focuser and aluminium case , extras include WO 1.25" DIG125D dielectric diagonal, WO C-RDF-P Red dot finder with quick release bracket and base, WO P-SCT2A 2" Opener adaptor/2" extender and WO P-PA2 2" Photo adaptor. Rarely used, $625 plus postage.

Louwai (Bryan) · #2 22-12-2007, 08:55 PM

I assume all 66's are a 2" focuser but just checking. Is it??

Bryan

UniPol · #3 23-12-2007, 07:26 AM

The scope normally accepts 1.25" EP's however the 2" Opener adaptor/2" extender allows you to fit 2" diagonals and EP's. The adaptor is a 2" SCT fitting so it will screw on to Meade and Celestron SCT's as well.

mick pinner · #4 23-12-2007, 08:47 PM

how is it for colour correction? l know it's FPL-51 glass but very well baffled so l assume it's reasonably colour free.

UniPol · #5 24-12-2007, 07:58 AM

I am pretty certain that that no noticeable colour is apparent. The scope is mainly used as a rich field refractor at low powers i.e 30X - 50X. Star fields are pinpoint sharp and well contrasted. If the weather clears I'll drag it out to view the Moon and perhaps Venus.