Upload & Sell: Off
I bought one of these and was wondering if anyone else has any weird issues with it...mine doesn't always try to focus on anything when I turn on my camera. Like, I have it attached to a 5D Mark II, camera powers on, autofocus doesn't work even though switch is on AF. Flipping the switch doesn't fix it, but unmounting and remounting the lens fixes it.
That being said, I like the image quality, weight, and size. It seems to also work for infrared photos. When I get back home, I'll pixel peep for hot spots, but at quick glance, I don't see any.