Posse member Bruce Tomaso lends a hand with a reflector as photojournalist Guy Reynolds focuses in on Big Daddy’s Ribs & BBQ owner Blake Merrell in Little Elm. (Photo ©Chris Wilkins/Texas BBQ Posse) If you follow this blog, you know it regularly features great barbecue photography. Several Posse members are photographers and they bring their equipment — all kinds of equipment — when we go on tours. Our recent Denton County tour, though, saw the most unusual piece of equipment yet. Guy Reynolds used a tripod mounted Graflex to shoot portraits of some of the pitmasters we visited. On other tours,…