any budget xpg2 AA lights out there?

[sixty545]

@RedForest UK

@sixty545

I always heard that the eyesight as well as the hearing was logarithmic in nature. Strange that a formula cannot be found.

Are these any good to you? http://www.cg.tuwien.ac.at/research/theses/matkovic/node17.html

Thanks for the finding! I think this is more about picture brightness than about point sources.
I already came to some sort of a conclusion about flashlights in another thread.
But thanks anyway!