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Flash settings. Do i understand them correctly?
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<blockquote data-quote="WayneF" data-source="post: 350746" data-attributes="member: 12496"><p>At last, a good question about actually using flash, and actually in the flash forum! Hurray. (certainly not making fun of you, making fun of everyone else <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> )</p><p></p><p>Are you using TTL flash, or manual flash? Which flash? (I'm asking TTL or TTL BL mode). Are you indoors or outside in brighter light? These are sort of different situations, so I'm holding back, not knowing yet what we are discussing. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>It isn't clear if you refer to reducing flash power of manual flash mode, or if you mean using Exposure Compensation. I think you may mean Exposure Compensation? Because reducing flash power level would not reduce the ambient exposure. You said bounce, so surely indoors.</p><p></p><p>On Nikons, Exposure Compensation (the +/- button by shutter button) affects both ambient and TTL flash, reduces both equally, and makes overall picture darker.</p><p></p><p>Probably the better solution (for TTL flash) is to instead use Flash Compensation (see camera manual, but on the D3100, I think it is the same button that opens internal flash door (doesn't open if using hot shoe TTL flash).</p><p></p><p>Flash Compensation <strong>only affects relative TTL flash power level</strong> (like changing power level on a manual flash). TTL level is still relative to the ambient exposure though.</p><p>Exposure Compensation <strong>affects both ambient exposure and flash exposure</strong>.</p><p></p><p>(and all these ways add for the final flash value)</p><p></p><p>We could talk about P mode (good for fill in bright sun, less good indoors), or Auto ISO (generally bad news for flash, esp indoors), or about 1/60 second (does one size really fit all?), or about fill flash or main light flash, etc, but yes, the idea is to watch your first flash result (in a new situation), and then if necessary, you can correct it in the next shot to make it better, like you want it.</p><p></p><p>Higher ISO (relative to flash) would be for when the flash had insufficient power capacity otherwise.</p><p></p><p>My signature link might be of interest, particularly Fundamentals Part 4 (flash involves a double exposure).</p></blockquote><p></p>
[QUOTE="WayneF, post: 350746, member: 12496"] At last, a good question about actually using flash, and actually in the flash forum! Hurray. (certainly not making fun of you, making fun of everyone else :) ) Are you using TTL flash, or manual flash? Which flash? (I'm asking TTL or TTL BL mode). Are you indoors or outside in brighter light? These are sort of different situations, so I'm holding back, not knowing yet what we are discussing. :) It isn't clear if you refer to reducing flash power of manual flash mode, or if you mean using Exposure Compensation. I think you may mean Exposure Compensation? Because reducing flash power level would not reduce the ambient exposure. You said bounce, so surely indoors. On Nikons, Exposure Compensation (the +/- button by shutter button) affects both ambient and TTL flash, reduces both equally, and makes overall picture darker. Probably the better solution (for TTL flash) is to instead use Flash Compensation (see camera manual, but on the D3100, I think it is the same button that opens internal flash door (doesn't open if using hot shoe TTL flash). Flash Compensation [B]only affects relative TTL flash power level[/B] (like changing power level on a manual flash). TTL level is still relative to the ambient exposure though. Exposure Compensation [B]affects both ambient exposure and flash exposure[/B]. (and all these ways add for the final flash value) We could talk about P mode (good for fill in bright sun, less good indoors), or Auto ISO (generally bad news for flash, esp indoors), or about 1/60 second (does one size really fit all?), or about fill flash or main light flash, etc, but yes, the idea is to watch your first flash result (in a new situation), and then if necessary, you can correct it in the next shot to make it better, like you want it. Higher ISO (relative to flash) would be for when the flash had insufficient power capacity otherwise. My signature link might be of interest, particularly Fundamentals Part 4 (flash involves a double exposure). [/QUOTE]
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