Standard format cameras are what most people think of when they think of security camera. They are more or less shaped like rectangular cube with a lens attached to the front. In the vast majority of situations, standard format camera bodies are suitable. Standard format cameras should be used in any situation where the camera is intended to be seen and a fixed view is acceptable. You may see the term “bullet camera” from time to time. Bullet style cameras are just a variation on a standard camera body is cylindrical rather than box-like. Other than that, there is a little difference.