christian mann Posted September 1, 2016 Share Posted September 1, 2016 Hey, a quick beginners questions...: how much more "power" does a 4KW PAR have vs a 4KW Compact ? Can't find the relevant data online... Thaaaaaanx M Link to comment Share on other sites More sharing options...
Premium Member Jay Young Posted September 2, 2016 Premium Member Share Posted September 2, 2016 Compact has 96 footcandles at 45 feet on full flood PAR has 135 footcandles at 45 feet on full flood I found this information using the Arri Photometric calculator - and you can too: http://calc.arri.de/calculator The reason, I think, is because the Compact has a wider beam angle (61-degrees) vs. the PAR (52-degrees). The PAR is the more concentrated source, even at flood. This smells like homework. Link to comment Share on other sites More sharing options...
Alexandros Angelopoulos Apostolos Posted September 2, 2016 Share Posted September 2, 2016 This smells like homework. People really hate it if it’s homework. don’t they. Or perhaps they just need to point out that it’s homework. I wonder why that is? Does it bother you that much? Link to comment Share on other sites More sharing options...
Premium Member Jay Young Posted September 2, 2016 Premium Member Share Posted September 2, 2016 People really hate it if it’s homework. don’t they. Or perhaps they just need to point out that it’s homework. I wonder why that is? Does it bother you that much? Doesn't really bother me, but I find learning what something is called (Photometeric Data) helps one remember it for future use. Now chances are that I answered the specific question, the OP didn't actually learn anything - I am hoping he will follow that link and play with the program, learning about photometric data in the process. Link to comment Share on other sites More sharing options...
christian mann Posted September 2, 2016 Author Share Posted September 2, 2016 hey, thanks! that does help. didn't know the app yet. and I don't mind homework :) Link to comment Share on other sites More sharing options...
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