Technical Support wrote:
We are in the process of retesting all components. With a cover on, you would probably get a wider spread from the PLM than softbox (mostly because it is bigger than the softbox).
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The 86" arc PLM has 4,708 in² of reflective area.
An 86" arc PLM has a 27” radius so that when an White Front Diffuser Fabric is fitted, the Area of that Circle of now diffuser, not relector area is reduced to 2,290 in²!
The 86" arc PLM's diffuser area is 490 in² (21%) larger than the 30" x 60" Giant Softbox's 1,800 in².
Other factors are: how well light is transmitted by the Front Diffuser Fabrics of the two different modifiers, how evenly the light is distributed, and how much it is spread by them, all of which can only be know by testing.
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With that in mind, more spread, the less light falling on any one point. We do not have a revised PLM to give any absolute measurements right now, but this information will be available one it is compiled.
Michael S. Rose
Columbia, MD
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