I shadowed a photographer today who had a 35L, 135L. and 24-70. We did an outdoor portrait shoot with a model and a few of his son who was helping with lighting. It seemed like he was choosing lenses at random...grabbed the 135L, took a few steps back and shot a full body portrait. Then threw on the 35L, took a few steps forward and again, shot a full body portrait.
I can understand that maybe indoors or in tight spaces it might make sense to use a 35L over a 135L, but outdoors, whats the point? When I asked him he said all three lenses produce different "looks", but I dont really see it. It seemed more like he was grabbing lenses at random and shooting.
In a situation like this, outdoors with a human subject...in what situation would you grab for the 135L vs the 24-70 vs the 35L, and why?