Jonathan O'Neill Posted February 24, 2021 Share Posted February 24, 2021 Hi just wondering if anyone knows these workings? The reflective characteristics of the material would be required I believe, plus the size of the bounce. What are the rough calculations to work out the distance from the ultrabounce to get a reading of 67lux? (t2 , 25p , iso800) Cheers Jon Quote Link to comment Share on other sites More sharing options...
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