RF wireless remote is a perfect match to wildlife and landscape photographers who need a long distance control to their cameras and prevent blur caused by camera shake while pressing the shutter. The radio frequency wireless controller has 16 user selectable channels to prevent the interference from the other people's remote, and can operate up to 300ft if there is no obstruction. Due to the nature that radio frequency can bounce from the walls, it is also good for controlling your camera behind the wall. Because the receiver doesn't have to see the controller, you can operate the remote behind you or in your pocket, thus this remote is also perfect for self portrait as well.
At situations where there is strong sunlight and the IR remote fails, the RF remote will continue to serve you. The shutter release button on the controller has two steps one for AF and one for shutter release that works the same as your camera shutter button.