The illumination power of a built-in digital camera flash is limited. For this reason, many photographers who take a lot of inside photos use an external flash. Whenever using the built-in flash, it is important to stay within the recommended range for the focal length used.
Using the flash inside in low light
If you’re inside taking photos during the day, open doors and curtains to let in outside, natural light to supplement the flash. Otherwise, turn on more lights in the room and adjust the white balance.
If necessary, also increase the ISO.
The lower the lighting, the greater the likelihood that photos of people will have red-eye. Be sure to read the information about steps you can take to help prevent red-eye.
White balance and color cast
When taking photos inside when the main lighting in the room is artificial change the white balance setting to match the light. Proper while balance will prevent, or at least, reduce any color color cast.
If you can set white balance manually, do so. If the color still doesn’t come out as expected, correct the color cast with photo editing software.
Using the flash outside in low light
To capture a dimly lit background in a night scene when the main subject is in the foreground, use slow synch flash or the night scene mode. The flash will fire briefly to light the foreground subject but stays open long enough to capture some of the background light. A tripod or other camera support is recommended when using a slow synch flash mode.