Indoor photography with and without flash

The subject may appear dark when shot indoors without flash, but the photo appears natural

One of the strengths of digital cameras is that satisfactory results can be obtained indoors under various types of illumination without using a flash.

However, you must still use the flash to freeze a quickly moving subject. As always, local conditions must be taken into consideration, but generally the background will be slightly affected by the color of the room lighting, since the auto-white balance feature will reference the subject illuminated by the flash. The closer the flash is to the subject, the less exposed the background will be. If the background is immediately behind the subject and within the effective range of the flash, there should be no problem.

When shot with a flash, the subject is properly exposed but the background is underexposed

Compare:Understanding Digital Cameras/When a bright window is in the background, use the flash