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<blockquote data-quote="hark" data-source="post: 835626" data-attributes="member: 13196">There really isn't a guaranteed way to make sure the exact amount of flash will be perfect on the first shot. TTL is going to read the entire scene. If it's overly bright, the flash will read that brightness and come up with what it determines is correct. The same for a darker scene. The flash will aim to render enough light to produce a medium brightness. If a scene needs more or less light, you'll have to use the exposure compensation button to raiser or lower the output.If you look at the scene, try to determine the scene's brightness. Part of the final results depends on how far the flash is from the subject. The closer it is, the less light you will need (relates to light falloff). Learning to see the brightness will help you decide which manual power setting might be close to what the scene requires. Start with a flash power in the middle ... maybe 1/8 or 1/4 power. From there you can adjust up or down as necessary.</blockquote>

[QUOTE="hark, post: 835626, member: 13196"] There really isn't a guaranteed way to make sure the exact amount of flash will be perfect on the first shot. TTL is going to read the entire scene. If it's overly bright, the flash will read that brightness and come up with what it determines is correct. The same for a darker scene. The flash will aim to render enough light to produce a medium brightness. If a scene needs more or less light, you'll have to use the exposure compensation button to raiser or lower the output. If you look at the scene, try to determine the scene's brightness. Part of the final results depends on how far the flash is from the subject. The closer it is, the less light you will need (relates to light falloff). Learning to see the brightness will help you decide which manual power setting might be close to what the scene requires. Start with a flash power in the middle ... maybe 1/8 or 1/4 power. From there you can adjust up or down as necessary. [/QUOTE]

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