don't think there are any in Australia - this link has the US and Canadian dealers
http://www.antaresoptical.com/dealers.htm
& this is the company details
Antares/Sky Instruments
Telescopes, eyepieces and other optical equipment.
1-877-270-4225
Fax: 1-800-648-4188
www.antaresoptical.com
sorry not to be more help, dan