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p.1 #4 · What Diffuser for the SB-900? - disappointed with Lumiquest Ultrasoft and Lumiquest Softbox | |
I think you misunderstand how the diffusion domes work. By themselves, they don't create a softer light at all because the size of the light source stays the same. The flash head is still a 'bare bulb' (and more so with the dome compared to the small, highly directional light that comes from the flash without the dome) that results in strong shadows and harsh light. These devices are intended to be used indoors, for example, where you have low reflective ceilings, white walls, etc. that function as larger light sources when you spread-out the flash with the dome and bounce the light off the ceilings, walls, panels, etc.
Soft light is created when the light source is large relative to subject size (as a function of distance). A small softbox placed a long distance from the subject will create harsh shadows, but place that softbox at a distance of 1 or 2 times it's diameter (or closer) and you will see much softer light that starts to wrap around the subject.
How big is the Lumiquest softbox and how far away are you using it from your subject?
~Ted
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