Nikon has issued a service advisory for users of the Nikkor 300mm f/4E PF ED VR lens.It relates to noticeable blur when the lens is used in certain circumstances with D800, D800E or D810 DSLRs.

Nikon has stated "We have confirmed that when the AF-S NIKKOR 300mm f/4E PF ED VR lens is used with the D800, D800E or D810, images captured at shutter speeds of around 1/125 s with the VR function enabled (NORMAL or SPORT) sometimes exhibit noticeable blur. To reduce the occurrence of this, we will offer a service for updating your AF-S NIKKOR 300mm f/4E PF ED VR firmware. When cameras other than the D800, D800E or D810 are used, this firmware update is not needed."

Users of D800, D800E or D810 cameras can take or send this lens to their nearest Nikon service centre, where the lens firmware will be updated free of charge. Nikon added however, that lenses with a serial number of 205101 or later have already been updated.

If you would like to know more, please visit the Nikon Europe Services and Support page.