I have a Canon EOS 600D and the Fernbedinung works on the reach of 8m. A longer range I have not tried. You can only use the remote release alllerdings front (located on the sensor of the camera), which differ slightly to the left or right and up or down (max. 1 m) are possible. But that the fun can function at all must first be set on the camera. When 600D you have to pay for the four arranged in a circle buttons press the left to the right of the display, thereby "mode" is in the menu and then to select the "Self-timer" option. If this is done, and then press in the remote "S" triggers the camera and "2S" is taken after 2 seconds. When Fernbedinung a carabiner still was there, which is handy.
