Your phone has an infrared emitter? you have a camera that supports infrared? Well, I have good news for you, you no longer need to lug around a ir remote control to take in freedom, just your smartphone, and with a click you already have your photo! you have different camera bodies? perhaps from different manufacturers? why risk taking the wrong remote, find discharge or leave it at home, if only for emergencies, your smartphone is here to make your life easier, thanks to applications such as "remote reflex ir" (irDSLRCommander) the remote control in a 'app only supports the Nikon, Canon, Canon D, Fuji, Minolta, Olympus, Pentax and Sony!