If all works of art are automatically copyrighted upon creation, then what is the point of registering a copyright?
It can be very difficult to prove who is the original creator of a work absent some sort of registry that documents both what was created and when it was created. This is what registering a copyright does.
Likewise, placing a copyright notice on a work of art does not create the copyright, but rather eliminates the contention that a copyright violation was unintentional.
Filing a copyright claim, or registering a copyright provides evidence of exactly what photograph was created, who it was created by, and when it was created. Should someone ever misuse the photograph, the registration of copyright claim will be a powerful piece of evidence in any court proceedings.
Copyrights can be registered with the U.S. Copyright Office. An online filing of a basic claim on an original work costs $35. Filing paper forms costs more and are processed more slowly. Only after a copyright has been registered is it permissible to use the little c inside the circle symbol.