You will want to find a macro lens and you might want to check to see if there are any macro settings on the camera. What is the specific model of your camera (T3i, XTi, XT, etc.)? If you will provide the exact model then I or someone else may be able to help you find a lens. Here is one example of a macro lens from Canon: http/www.usa.canon.com/cusa/consumer/products/cameras/ef_lens_lineup/ef_s_60mm_f_2_8_macro_usm but I'm not sure whether or not it will work with your camera.