You can use a Monocular too as i shown in this Thread ...Halfway down the Page,
http://www.birdforum.net/showthread....8&page=2&pp=25
But still a little fiddly,
Yes with the Binocular setup you can adjust the eyepiece on the Right
side of the Bin's to do fine focus etc,
As for Ebay ... I never bought it from there ... I bought it from this Telescope Site ...
http://www.dhinds.co.uk/pages/fullProd.php?id=400
Give them a call and maybe you can send them Postal Order's etc,
I use the Adapter for my ED 80 ES Scope and Camera,
Good luck on the "DigiBinning"
,
Tc,
John,