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<blockquote data-quote="FastGlass" data-source="post: 158696" data-attributes="member: 13822">When using any type of flash, whether speedlights or strobes. You will always have two exposures to now deal with. You have ambient light exposure. And you have flash exposure. By adjusting your shutter speed, your adjusting your ambient light exposure. By adjusting your aperture, your adjusting your flash exposure. So say your taking portrait of someone outside on a sunny day. Your subject is in the shade, but your background is in full afternoon sun. If you take the shot exposing for the background than your subject will be underexposed. If you expose for the subject than your background will be overexposed. Thats where flash comes in.&nbsp; Most people would expose for the background and fire away. If you need to adjust the flash on your subject than adjust your aperture. If you need to adjust the background than adjust your shutterspeed.Of course theres a little more to it than that but thats pretty much how it works. Your best bet is to find some you tube videos on Brian Peterson on understanding flash photography.</blockquote>

[QUOTE="FastGlass, post: 158696, member: 13822"] When using any type of flash, whether speedlights or strobes. You will always have two exposures to now deal with. You have ambient light exposure. And you have flash exposure. By adjusting your shutter speed, your adjusting your ambient light exposure. By adjusting your aperture, your adjusting your flash exposure. So say your taking portrait of someone outside on a sunny day. Your subject is in the shade, but your background is in full afternoon sun. If you take the shot exposing for the background than your subject will be underexposed. If you expose for the subject than your background will be overexposed. Thats where flash comes in. Most people would expose for the background and fire away. If you need to adjust the flash on your subject than adjust your aperture. If you need to adjust the background than adjust your shutterspeed. Of course theres a little more to it than that but thats pretty much how it works. Your best bet is to find some you tube videos on Brian Peterson on understanding flash photography. [/QUOTE]

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