Hi. First time post here. I hope somebody can help me with this. I just got a used Tamron 24-135mm lens yesterday and it looks beautiful. But, it looks like it only rotates to 28mm even though there is a 24mm line indicator on the barrel. How do you make it go the rest of the way? I don't know if there is a problem with the lens or I'm doing something wrong. I've tried it both on and off the camera, but no good. I can't see anything interfering with the zoom movement. To make sure I wasn't just looking at it wrong, I took a photo and looked at the EXIF data and it does say 28mm and not 24mm. I really like the lens, so I'm hoping it's just something stupid I'm missing here.