I have a Nikon 300/4 AFS and the built in lens hood is extremely stiff to pull out and push in. There is a black string/knot that has emerged from between the hood and the lens. Anyone have ideas or insights on how to fix this situation? I don't want to do anything to screw up the lens or the hood. Tucking it back in doesn't seem to resolve the issue. It just keeps reemerging. Thanks!
Nels
No string here either. As you are looking through the view finder twist the hood to the left, extend it, then short (1/8 turn?) to the right to lock it in place.