5. Flash Photography
When the lights go down, you have two choices if you want to keep shooting: either increase the ISO setting or start using a flash. You don’t have to wait until it’s dark for flash to be useful, though. Flash can be a great addition in any kind of light when you need to fill in shadows or add a twinkle to someone’s eyes.
Built-in Flash
Almost all of the entry-level and mid-level digital SLR cameras come with a built-in flash that pops up when needed (Figure 5.1). For many people, this is all the flash they’ll ever need. It’s always there, never needs additional batteries, and doesn’t take up extra space in the bag or pocket. However, a built-in flash is not always a panacea.
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