I’ve seen some big ol’ softboxes in my time. 72″ octoboxes, 80″ stripboxes. But none of them hold a candle to an overcast sky. A nice moderate layer of clouds that takes the sun’s harsh, directed 120,000 lux and turns it into a beautiful, evenly distributed 10,000 lux.
DeBrazza’s monkeys, despite being incredibly handsome, have a very strong brow and cheek. This means that under direct sunlight, you’re never going to have enough dynamic range in your camera to get good light on the eyes without blowing the rest of him into the nuclear range. Once you get god’s softbox up and running though? Wow, are they some pretty monkeys.
The Zootographer 