Looks very nice hOughy. Check out this thread
http://www.iceinspace.com.au/forum/s...ead.php?t=7023
I am in the process of making one as a unit and when it is finished will send it to you to try out with the ED80 and the Canon.
By unit I mean a Canon T-mount at one end and 2" nosepiece the other with FR mounted inside. Will also take 48mm filters.
Bert