I feel like anytime I teach, I wrap it up by telling people to experiment. Well here I go again, the best way to learn the ins and outs of back lighting (and anything else) is to experiment with it. Shoot with different lenses, put the sun in different spots in and out of the frame, shoot at different times of day, etc. The more you experiment, the more you will learn what works, what doesn’t, and why. Happy experimenting!