What's the difference between a cannon camera and a card machine?

Are you talking about telephoto camera or SLR with telephoto lens?

Card machine CCD is very small, electronic shutter. Emphasis is placed on portability and aesthetics.

The CCD of telephoto machine is the same as that of card machine, but the zoom range of lens is larger than that of card machine, which can reach more than 600 after conversion. The telephoto ability is relatively strong.

SLR is professional photography, CCD is very large, and the recording effect is much higher than that of card machine. Its main feature is that it can change lenses and has a mirror. Change it into a telephoto lens, which is generally used for sports competitions and shooting wild animals, or for sneak shots. The word cannon does refer to a lens, a lens with a focal length of more than 400 and a large aperture.