A:Answer When viewing through the viewfinder of the Nikon D3400 DSLR camera itself, you can adjust the diopter until you have a fully focused view. Bringing your eye to the viewfinder will block out sunlight so you can see the information in the viewfinder easily. To prevent light entering via the viewfinder from appearing in the photograph or interfering with exposure, we recommend that you cover the viewfinder with your hand or other objects such as the optional DK-5 Eyepeice Cap before taking pictures without your eye to the viewfinder. This camera has a 170° Wide Viewing Angle TFT-LCD monitor with a Type B BriteView Clear Matte Mark VII screen for easy viewing. This screen type, coupled with a brightness adjustment setting, allows the user to view the monitor even when in very bright sunlight if you decide not to use the viewfinder. To learn more about this camera please contact Nikon Support.
