During the years when film was the only medium we had to capture pictures of what your telescope was pointed at, you used a big bulk mount and a 35 mm camera to get a decent picture. If you wanted a super high quality picture you had to spend thousands on a camera and lenses. Today you can buy digital astronomy cameras from Telescopes.net at a fraction of the cost that take pictures that are as good as if not better than those you capture with film.
There are several advantages to modern digital astronomy cameras including being able to use your PC to monitor what your telescope is seeing. They produce superior quality imaged and thanks to advanced software, you can enlarge and enhance them so that you can see the details very clearly and of course you can print off as many copies as you need to as often as you need them.