Nikon 19mm F4 PC Nikon-E lens patent surfaced over the web, We are publishing the Nikon 19mm F4 PC Nikon-E patent third time,the first patent was published on December 2nd, 2015 of fullframe mirroless lens, you can see the details here. The second patent was of fullframe DSLR lens made in collaboration of Cosina published on December 9th, 2015, details of the patent are here
Take a look at the details of recent lens patent here
Self-interpretation
Patent Publication No. 2016-136212
Published 2016.7.28
Filing date 2015.1.23
Example 1
f = 19.569
FNO = 4.1
ω = 59.317
Y = 21.6
TL = 177.952
Bf = 56.400
We will update you soon as we get any new information — See Nikon Cameras and Lenses Coming in 2016 also browse all latest Nikon Rumors here
source –egmai
