I visted a construction site today and one of the workers had just finished spray painting some drywall. He had just taken off his respirator and I asked him if I might take his photograph. He agreed.
And by the way, this was taken with the much maligned Kit Lens WR 18-135mm Looks pretty good to me.. maybe the lack of the AA filter on the K5 IIs is working for this lens rather than against it.
Pentax K5 IIs WR 18-135mm