Well fingers crossed then that it is the Canon mount then! They certainly are a lot different, thanks for posting those images Smooth.
Believe it or not, it was the cheapest I could find, other than a company called Sighterz in HK, but they messed me around so much saying they had sent it and it never turned up, I got a refund and found this one. The Australian dollar is very strong right now and it worked out at $926.00 and that includes free shipping too! I checked a shed load of places and this was the cheapest one I could find. There were some slightly cheaper than the one I have chosen, but by the time they added the shipping cost it wasn't worth it. - I hope! I went back to DigitalRev as that is where I got my EOS 450D from cheaper than I could find elsewhere.
Will let you know. Really eager to get going with his and get into the world of virtual tours!!
EOS 450D, Sigma 8mm F3.5 EX DG, Manfrotto 190XPROB