After Tamron, Sigma also issued a notice about using Sigma lenses with the new Nikon D6 camera: Thank you for purchasing and using our products. We have found that some SIGMA interchangeable lenses for Nikon are not fully compatible with the Nikon D6 released on June 5th. When certain lenses are attached to this camera … Continue reading Notice about compatibility for Nikon D6 with Sigma lenses