Nikon will soon mark their 70 million Nikkor lenses milestone. It took Nikon 6 months to produce 5 Million lenses in 2011 (65 Million lenses were announced in October 2011; the 60 million milestone was in April, 2011). The official press release will probably come out with the new Nikkor 24-85mm f/3.5-4.5 VR full frame lens, maybe this Friday.