Try cleaning the contacts on both the camera and the lens and the mounts themselves. Once a month I clean them with CRC QD Contact Cleaner. You would be surprised at the amount of dirt/corrosion that is there
Copyright © Nikonians 2000, 2013
All Rights Reserved
Nikonians®, NikoScope® and NikoniansAcademy™ are trademarks owned by Nikonians.org.
Nikon®, Nikonos® and Nikkor® are registered trademarks of Nikon Corporation.