Another supertelephoto patent surfaces

We have discovered another supertelephoto patent application from Canon, this one dealing with further reduction of chromatic abberations and axial CA

The lens designs don't specifically have IS elements marked, but does feature element groups that canon usually uses for IS.

The supertelephoto's listed in this patent application are;

• 300 2.8
• 400 2.8
• 500 4.0
• 600 4.0
• 800 5.6

Japan Patent Application 2018-018101

Richard CanonNewsRichard CanonNews

Richard has been using Canon cameras since the 1990s, with his first being the now legendary EOS-3. Since then, Richard has continued to use Canon cameras and now focuses mostly on infrared photography. Richard is the founder and editor of CanonNews since 2017, and has worked as a writer on CanonRumors and other websites in the past.

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