Does Canon EOS C 100 really work?

C 100 uses the EF lens used by Canon SLR. Of course, Canon also has a focal plane specially designed for camera shooting, as long as it is an EF bayonet. Generally speaking, there is a difference between a photographic lens and a camera lens. Photography lens emphasizes the sharpness of resolution, while camera lens may emphasize contrast color, and large aperture is better. Good professional camera lenses are quite expensive. If it's not a professional camera, you don't have to spend this money. Canon SLR lens can take care of two cameras. As long as it is EF-port lens, it can be used in C 100, including those you mentioned.