The Sale of Goods Act is great if the vendor is still trading when you need to return the goods. Unfortunately, some shops are not going to be there when you need to claim, so you are just left with the warranty.

The protection from the Act depends on the expected lifespan of the item, and the type of use to which it has been put. Strictly speaking, a professional photographer could have difficulty claiming for repair of a Rebel camera because it is intended for consumer use, in the same way that a hotel couldn't claim for a broken dishwasher if they bought a model that was intended for domestic use, even if it's only a week old.