Nikon 17-35 2.8 apeture failure

Some Nikon customers are experiencing aperture control failure due to heavy volume of dust accumulating in the control mechanism. This failure will cause overexposure and exposure error will increase as smaller apertures are selected. To obtain repair service, visit Southern Photo Technical Service, a Nikon Authorized Service Center for shipping instructions. Please supply sales slip for all warranty repair claims. Visit them at http://www.sp-ts.com for free repair estimates on non-warranty repairs.