Imaging recource: Nikon patent shows 1-series 70-300mm f/4.5-6 VR lens with Phase Fresnel (PF) element

A new patent from Nikon details the schematics for a Nikkor 70–300mm f/4.5–6 VR CX lens for its Nikon 1 series mirrorless cameras that utilizes Nikon’s Phase Fresnel (PF) technology, first seen in its 300mm f/4 that was announced this past January. Originally filed back in October of 2014, the patent lays out a mirrorless telephoto zoom lens, consisting of 19 elements in 3 groups. The fourth element from the front (labeled ‘DOE’ in the patent’s illustrations), is the Phase Fresnel (PF) element, a type of lens developed by French physicist Augustin-Jean...
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