Re: Canon Rebel XSi Review Thanks for your quick reply. Is there any other lense you would suggest instead of the Tamron? Or maybe I should just keep the kit lens for the times I would need the 18mm for now? I was also initially looking at the new 55-250 EF-S lens but thought the Tamron sounded like it might better suit my purposes. Is the Tamron 17-55 2.8 you mentioned above an IS lens?