Your EOS is a single-lens reflex (SLR) camera. The lens used to create the image in the viewfinder is also used to expose the image onto the digital sensor or film. This means that what you see is what you photograph.
With Canon’s interchangeable lenses you can capture the wide expanse of a landscape or you can fill the frame with a flower; just change the lens at any time to suit your subject. Creativity is a key reason for the wide range of lenses in the Canon EOS family; you have the choice of the best lens for each subject.
This guide will help you understand which lenses will suit your needs.
Canons unique lens finder will help you make the lens choice which is right for you.