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  • Breaking News

    A New Canon EF 70-200mm f/2.8L IS III is coming

    Patent: A New Canon EF 70-200mm f/2.8L IS Optical Formula Referenced

    Northlight has uncovered a lot of new lens patents from the USPTO, some of the more interesting ones include new glass types for various long lenses, including an example for a new EF 70-200mm f/2.8L IS. A lens we think still has a chance at coming later this year.
    This patent centers around the use of glass with high dispersion and negative anomalous dispersion.
    Just a reminder, expect to see the EF 70-200mm f/4L IS II to be announced this month.
    A bunch of other optical formulas for long lenses, including an EF 400mm f/2.8L IS are included in this patent application.


    Read more: http://www.canonrumors.com/patent-a-new-canon-ef-70-200mm-f-2-8l-is-optical-formula-referenced/#ixzz5BqyW5ANf

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