Until a few weeks ago I had never taken a camera to a sporting event. So I was surprised when attending a NBA game they were not going to let me in with my telephoto lens. According to security any lens longer than their name badge was classified as professional. I promised not to use the lens and they reluctantly let me in. I do not know if this rule is arena, sport, or all pro sports specific, but I will call the next time before I take my gear. Some walks from where you park can be lengthy. Have any of you had similar issues when trying to take pictures at sporting events?