Patent: Canon RF 35-135mm f/2.8 and other fast zoom lenses

Craig
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Canon News has uncovered a patent showing optical formulas for fast RF zoom lenses, likely of the L variety. The purpose of the patent is to showcase a high-performance zoom lens design.

Of the three embodiments in this patent, only the RF 35-135mm f/2.8 seems like a design that has a slight chance of becoming a consumer product.

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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.
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