Tag Archives: Nikon fluorite (FL) element lens patent

Nikon 300mm f/2.8 FL VR lens patent

I have been reporting for months now that Nikon will slowly update many of their current tele photo lenses with a fluorite (FL) element (see the difference between Nikon’s fluorite lens and fluorine coating). You can see the initial list of upgrade candidates that date back to 2014. There has been several patents in the past for […]

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More Nikon patents for telephoto lenses with fluorite (FL) element

Nikon filed more patents for telephoto lenses with fluorite element – the list of future FL lenses now matches exactly the rumor I reported few months ago with the exception of the 200-400mm f/4 lens. Here are the upcoming Nikkor FL lenses described in the latest Nikon patent filed recently in Japan:

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Nikon’s patent for a Nikkor 600mm f/4 FL lens (with fluorite element)

Few months ago I reported that Nikon will start upgrading their remaining high end tele-lenses with fluorite element (FL). We are already seeing the first signs of this rumor: a new patent got published in Japan today for a Nikkor 600mm f/4 FL lens which will replace the current 600mm f/4G ED VR AF version. As […]

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