[IanP]

Yeah you need a 2", I had the same problem with the 1.25" adaptor I got with my SW ED80, I bought this one: http://www.bintel.com.au/Astrophotog...oductview.aspx
When I bought it in-store at Bintel a couple of weeks ago I thought it was only $29

Thanks Hugh,
The current price is $39+p&h but I think it's worth trying ..