Using the Camera's Built-in Flash
Built-in flash units either
pop-up when needed (top) or are fixed in the camera body (bottom).
The fill flash icon.
The flash off icon.
When you need to add light to a setup, the most available source is the flash that's built into your camera. Almost every digital camera comes with a small built-in electronic flash that is tied into the autoexposure system. Because of its limitations, built-in flash is not recommended for studio photography. In most cases you just need to know how to turn it off so it won't flash unexpectedly. However, there may be times when you can use it successfully, especially for fill flash on non-reflective subjects. When using the built-in flash, there are a few concerns:
The red-eye reduction flash icon.