Claiming to be the world’s smallest and lightest DSLR camera, Canon today introduced the EOS Rebel SL1 ($650/body, $800/body+lens). Designed to appeal to point and shoot camera users on the fence about moving up to a more sophisticated device, it’s 25% smaller and 28% lighter than the company’s prior-generation EOS Rebel T4i. Thankfully, the small size doesn’t mean you have to compromise on quality: the camera features…