![]() Aperture and ISO do not affect your flash exposure since the flash power will adjust accordingly.You can use TTL flash with any camera mode.This “pre-flash” happens microseconds before the actual flash. Before the flash goes off, a short flash burst - or infrared burst - measures the light and automatically adjusts the flash power.TTL works by using a meter to read how much ambient light is being returned to the lens.A TTL flash meters the exposure by going through the lens to automatically adjust the lighting for you. TTL flash means through-the-lens metering. Who’s right? Is one better than the other? Let’s take a look at each. Some photographers will swear by manual flash when it comes to this topic, and others will insist that through-the-lens metering (TTL) is the only way to go. There’s also learning to control your aperture and ISO in relation to the flash, not to mention figuring out what type of flash to use. You need to learn about your flash’s power, the distance between the flash and your subject, and how these things affect your photos. ![]() When you’re first learning about flash photography, there’s a lot involved. ![]()
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