I will spend Sunday at Resist March in LA, shooting protesters and the event in general. Previously I have covered several meetings (including one in this question)
I just bought a used SB-600 flash for my Nikon to use with my D3 and 20-35mm f/2.8 lens. I've never shot with flash before. I did a couple of test shoots and one live meeting shoot to make sure I understand how flash works.
My question is how can I make sure that flash is actually useful and helping me produce good quality images: filling shadows, allowing for backgrounds not to be washed-out, etc?
My complete set of gear is D3, 20-35mm f/2.8, and flash on one shoulder and D600 with 80-200mm f/2.8 on the other shoulder. It seems to be rather bulky combination, and I don't carry a backpack/waist bag when shooting in the city.