Quote:
Originally Posted by Stonius
I'm looking at this too. I think you need to get an LED driver module because the response of LED's is non-linear. The driver is essentially a (voltage? current?) regulator, I believe.
The key questions AFAIK is how many LED's arranged how (series, parallel) and what is their forward voltage and desired current.
Unfortunately, I still can't quite get there with the definitive answers yet myself.
I'm wanting to do something similar with a box with 4 lots of 4 white LED's but I can't quite make it work yet.
But I *can suggest if you're looking for a diffuser, Lee makes a very good white diffusion (216) that is much less prone to hot spotting than other things I've seen.
Best
Markus
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Intensity of LED is proportional to current.
I am not sure why you need to consider lin/log response...
Controlled current source is all you really need for the purpose.
BTW... for flats a clear blue sky is quite OK.