Adding magnification

Magnification can be added to either the microscope or for macro shots by adding extension tubes (or rings) to the camera. These are relatively inexpensive, really easy to work with, and are generally available in sets of three. By adding one or more of these tubes between the camera body and the lens, magnification is increased. These also work with the scope and can be added between the scope adapter and the camera body.

However, too many people feel that more magnification is better, whereas the opposite is more often true. With micro photos, I often like to be able to see some area around the object of my photograph. This often helps to see other identifying markers, such as die polish and scratches.
Macro photos should be large enough for all details of the coin to be clear.