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SB-700 and the diffuser dome
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<blockquote data-quote="WayneF" data-source="post: 174819" data-attributes="member: 12496"><p>The purpose of the little dome is to be aimed up, and to be clear, to allow normal bounce flash to work. It also intentionally allows considerable spill to exit forward, for direct frontal fill. Desireably, the bounce light ought to be stronger than the fill, by at least a stop. We can judge the two shadows to see this relation... if we care enough to actually look.</p><p></p><p>The pull-out white bounce card does this job easier and better, without any restriction of the overhead bounce power, and it can also be pulled only halfway out (control), etc. A little direct forward fill is good (shadows in eye sockets, etc). Too much simply washes out the bounce, and becomes direct flash again. We really ought to look at our results (critically), to see what happens. Beginners never how how to look, and "see". That is the big trick in learning lighting.</p><p></p><p>The dome also spills light in every direction. The wishful thinking is that it bounces off all the room walls all around, which hopefully makes it back to the subject, providing additional soft fill. One does need to consider the inverse square law however, and think out those distances. It might work in a tiny room.</p><p></p><p><a href="http://www.scantips.com/lights/flashbasics3.html" target="_blank">Four Flash Photography Basics we must know - Soft Light</a> (and the next page for hot shoe flash) shows direct comparisons, including the dome. We really should only treasure those results we can actually see happen,. Wishful thinking is rarely sufficient. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> We can see result, and if it has effect, it will be visible. If not visible, it did not happen, why bother?</p><p></p><p>The little dome is just too tiny to soften anything via direct flash. The flash head is still only two inches wide. Diffusion just means the light is scattered, and from two inches, it can only scatter outward, to miss the subject. </p><p></p><p> In contrast, from say a 40 inch (one meter) umbrella, up reasonably close (at distance comparable to the the diameter, or closer), the outer edges are scattered inward, to hit the subject from many different directions, from their left side, and from their right side, with each direction path filling and softening the shadows from every other direction path. Huge difference. Soft is created by Large lights.</p></blockquote><p></p>
[QUOTE="WayneF, post: 174819, member: 12496"] The purpose of the little dome is to be aimed up, and to be clear, to allow normal bounce flash to work. It also intentionally allows considerable spill to exit forward, for direct frontal fill. Desireably, the bounce light ought to be stronger than the fill, by at least a stop. We can judge the two shadows to see this relation... if we care enough to actually look. The pull-out white bounce card does this job easier and better, without any restriction of the overhead bounce power, and it can also be pulled only halfway out (control), etc. A little direct forward fill is good (shadows in eye sockets, etc). Too much simply washes out the bounce, and becomes direct flash again. We really ought to look at our results (critically), to see what happens. Beginners never how how to look, and "see". That is the big trick in learning lighting. The dome also spills light in every direction. The wishful thinking is that it bounces off all the room walls all around, which hopefully makes it back to the subject, providing additional soft fill. One does need to consider the inverse square law however, and think out those distances. It might work in a tiny room. [URL="http://www.scantips.com/lights/flashbasics3.html"]Four Flash Photography Basics we must know - Soft Light[/URL] (and the next page for hot shoe flash) shows direct comparisons, including the dome. We really should only treasure those results we can actually see happen,. Wishful thinking is rarely sufficient. :) We can see result, and if it has effect, it will be visible. If not visible, it did not happen, why bother? The little dome is just too tiny to soften anything via direct flash. The flash head is still only two inches wide. Diffusion just means the light is scattered, and from two inches, it can only scatter outward, to miss the subject. In contrast, from say a 40 inch (one meter) umbrella, up reasonably close (at distance comparable to the the diameter, or closer), the outer edges are scattered inward, to hit the subject from many different directions, from their left side, and from their right side, with each direction path filling and softening the shadows from every other direction path. Huge difference. Soft is created by Large lights. [/QUOTE]
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