Nikon Patents 300mm f/2.8E FL ED VR Lens

According to the Egami Blog, Nikon has patented the optical formula for the 300mm f/2.8E FL ED VR lens.

Patent Details

• Patent Publication No. 2016-161641
• Published: 2016.9.5
• Filing date: 2015.2.27
• Focal length: 294.00
• f-number 2.91
• Air conversion TL 304.88
• BF 67.25
• Air-converted BF 66.74
• Inner focus
• Anti-vibration (part of the third group)
• Adjustable air gap adjustment lens group