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Old 09-01-2008, 09:28 PM
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mch62 (Mark)
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Join Date: Oct 2004
Location: Glenore Grove Queensland
Posts: 649
12.5" f6 double truss Newtonian

Selling to fund new project 12.5" f6 double truss Newtonian with quality optical components.
Rob Royce Conical mirror.(fast cool down and rock solid mounting--no mirror shift)
The secondary mirror is a 2.14" FPI Protostar ULS Quartz.
Three vane FPI Protostar spider and holder.
Adjustable and lockable main mirror mount eliminates mirror shift.

The scope is optimised for planetary observing and imaging at f6 and only 17% obstruction by the secondary but due to open tube design , optimised component distance mounting and 1" low profile focuser has a fully illuminated imaging circle of 16mm and a 75% illumination of 36mm.
Balanced for equatorial mounting but Dob mounting not a problem.
Focuser cage is a rotating design.
The "Clement focuser" will not be included but mounting other low profile types will not be hard.
All parts no more than 4.5 years old with no marks or scratches on optical surfaces.

www.rfroyce.com/conical/
www.fpi-protostar.com/quartz.htm

Selling for $1980.00
S.E. Queensland pick up.
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