What is the relationship of brightness between sky and sun and a regular light bulb? Say, on a white paper, how bright would the sky, sun and a 60w bulb, or whatever? I've been trying different values, but I'm sure there is already something scientificaly done, and I can't find anything on this!
Read up on lux and luminosity.
YES, Thank you!
Now I really feel stupid not having found those 2 links on my own! I googled it all wrong. :wacko: