If you try to sell your camera body in the future, any knowledgeable buyer will want to know the actuation number your shutter has before plopping down their hard-earned cash. It’s a good idea to keep an eye on the actuation count of your shutter and take it in for regular routine maintenance to make sure it doesn’t give out early – or worse – during a shoot. The shutter is easily the hardest working mechanical part inside your camera and won’t last forever. Did you know your camera’s shutter has a shelf life?