Thanks for that, it is really appreciated. I had a look at this review for the canon,
Then as he mentioned the
Tamron 70-300mm f/4-5.6 VC USD
I had a look at that review also.
There is little difference in price, so I am back to confused.com
TC
I would stick with Canon mate, will be slightly sharper, better build quality and possible longer at F4 in the zoom range leading upto 5.6,
It's where I would be putting my money anyways