Over at my Instagram feed, questions about lighting regularly pop up. So, at least occasionally, I use my blog to try to offer some answers. Latest round of questions come from a pic of Fallon Rivers, who is a wonderful model, stylist and overall presence in and around Nashville. Shot at 1/4000th, f2 on a Nikkor 200mm f2 telephoto, ISO 200, on a D810. Min DOF, resulting in high speed sync. Light shaper is a Lastolite 4 in 1 umbrella,…