A friend of mine has a Nikon D80 with a AF-S Nikkor 18-135mm 3.5-5.6G ED DX lens. The problem is that it will focus just fine several times then it will not focus and the camera will not take a picture. Then it will start focusing again and start this all over again.
She has two lenses and it only happens using this lens. I have tried it on my Nikon D80 with the same results. I tried it in a well lite area and it is not due to low light keeping the AF from working. I wiped off the contacts of the lens also. I have run out of things to try so if any of my fellow members have any ideas please let me know. Thanks for any help or ideas you may have to offer, Jeff