Compact Monitor If you are going to have correct composition and exposure, then an external monitor is a must. Rather than composing your shot through a small viewfinder, the Compact Monitor gives you a large 2.5” color image. You see what the camera is recording, in full color, while holding the housing at arm’s length. Not only will the larger image be of great assistance, you can instantly see the results when you change white balance, exposure, ND filter, shutter speed, turn on lights, or use your flip down filter. You also see all the status information normally displayed in your camera's viewfinder.