This is the average expected amount of shutter actuations your camera will most likely deliver before the shutter fails. When shopping for a new camera, you may have noticed a specification called a shutter rating. This number matters because all digital cameras have different shutter life expectancies. Your camera’s shutter count or shutter actuation number is the number of times you’ve physically fired your camera’s mechanical shutter.
So, if your digital camera doesn’t spend most of its time on a shelf collecting dust or nestled safely in a camera bag, it’s important to know your shutter count. The age of your camera has less to do with its lifespan than its amount of use.
Unless your digital camera or DSLR camera is brand new, it’s a good idea to periodically check your shutter count.