Hi,
Had a custom adapter made by Josh for my ed80. I wanted a 2 inch adapter where I could screw a filter on permanently then screw on a celestron f6.3 reducer and then screw on my canon eos. Look at my link below for pics and the thread and hope ithelps
http://www.iceinspace.com.au/forum/a...hmentid=249061
Regards
Kon