Some interesting Nikon patents including a Nikkor 24-70mm f/2.8 PF VR lens

Some interesting Nikon lens patents:
Nikon-24-70mm-f2.8-patent-with-Phase-Fresnel-diffractive-lens
In May, 2014 Nikon filed a patent for a new 24-70mm f/2.8 lens with Phase Fresnel (PF) element (diffractive lens). I already mentioned few times that a new 24-70mm f/2.8 VR lens is on the horizon - if Nikon really uses a PF lens in the next version, the size and weight will be significantly reduced. Adding VR will make this a very desirable lens for every Nikon shooter.

Nikon-200-400-f4-5.6-lens-patent-with-Phase-Fresnel-PF
Nikon also has a new patent for a 200-400mm f/4-5.6 lens design also with a Phase Fresnel (PF) element. This patent was filed back in 2012. Nikon and Tamron already have a joint patent application for a 200-500mm f/4.5-5.6 lens.

The next two applications are newer filings on already existing patents:

Nikon-16-30mm-f4.3-5.6-lens-patent
The Nikon 16-30mm f/4.3-5.6 lens patent includes several different aperture versions: f/4.3-5.6, f/4.4-5.6 and f/4.7-5.6. This patent was filed in August, 2014.

Nikon-17mm-f4-tilt-shift-lens-patent
Here is another new patent for a 10mm f/4 and/or 17mm f/4 full frame tilt-shift lenses. This patents was filed in March, 2014.

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