My first question. In several wedding photos the groom's black suit has red blotches on it in the photos. The shots were taken with a Canon 6D with a 70 - 200mm lens at 120mm, ISO 250, 1/400 sec., f/2.8. See photo below for an example. There is a very bright area next to the suit in the set of photos. Thanks for any suggestions. All pictures in the set were taken with the same lens.