When is fluorine coating coming to more lenses

[hamlet]

I'm really wondering when fluorine coating is coming to the lenses like: 24-70, 70-200 & 14-24? That last one especially, because that front element bulges to catch all dirt a rain.

 

[sscarmack]

I'm hoping for a new 24-70 within two years. That's the one lens I've been really waiting for.


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[hamlet]

I might could just also buy that one if it has that new coating plus more features.


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[KmH]

No one here can answer your question.
Someone from Nikon would have to provide the answer, but it's not likely such proprietary information would be made publicly available.

Fluorine is attractive as a lens coating because it is dielectric.
Unfortunately Fluorine is also extremely reactive. So extremely reactive it even reacts with some of the nobel gases. Nobel gases generally have very low chemical reactivity.
Refining pure Fluorine is a very expensive process,
Organic fluorides have very high chemical stability and one of the organic fluorides is well known as Teflon (PTFE).

Most Fluorine type optics coatings use Magnesium Fluoride or Calcium Fluoride.
Optical coating - Wikipedia, the free encyclopedia

 

[hamlet]

One of their teleconverters comes equipped with that coating.