Wolverine running around his cage

No, not drinking places.  Although that would be an interesting experience, too.  Shooting through bars in cages is what I’ve referring to.  The technique is similar to shooting through glass: you still want to get close to the bars, use a wide-open f/stop… But here’s the rub: it’s much more relative.  The closer you are to the bars and the further the subject is from them, the more they’ll blur out.

Witness the wolverine to the right: you can’t tell that there’s a metal fence between us, but you can see the far end of the cage behind this fellow.  In this case, I was already about 3 feet from the fence, but this guy was an easy 40 feet away (possibly further – I’m lousy at gauging distances).  I didn’t have a top-of-the-line zoom lens with me, but the distance is such that it didn’t matter – Even at f/5.6, the bars are gone.