Nikon D3400 Reference Manual - English - Page 120

3 Frame the photograph. Check focus by pressing the shutterrelease button halfway. 4 Take the photograph. From a distance of 5 m (16 ft) or less, aim the transmitter on the ML-L3 at the infrared receiver on the camera (0 2) and press the ML-L3 shutterrelease button. In delayed remote mode, the self-timer lamp will light for about two seconds before the shutter is released. In quick-response remote mode, the self-timer lamp will flash after the shutter has been released. Note that the timer may not start or a photograph may not be taken if the camera is unable to focus or in other situations in which the shutter can not be released. A Before Using the ML-L3 Remote Control Before using the ML-L3 for the first time, remove the clear plastic battery-insulator sheet. A Cover the Viewfinder To prevent light entering via the viewfinder from appearing in the photograph or interfering with exposure, we recommend that you cover the viewfinder with an optional eyepiece cap (0 268) before taking pictures without your eye to the viewfinder (0 68). 96 More on Photography