Hi, I just purchased the Tamron 70-200. When I put it on my K50 it is not working properly. It doesn't seem to focus. My camera basically locked up none of my camera controls are working with it on. I can't even turn the camera off unless I remove the battery. Am I missing something here. My other question is that I purchased this lens to use for fast action sports. I read a lot of reviews on here before ordering but after placing my order I found alot of reviews from other sites saying that this is a very poor lens for action sports. The pentax is so much more money I wanted to give this one a shot anyways (if I can get it to work
) Any advice, and or opinions on the lens itself would be greatly appreciated. I mostly shot HS football, Lax and Volleyball.
Thanks in advance
Kim