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Canon Patent For RF 24-70mm f/2.8 and RF 28-85mm f/2.0-2.8 Lenses (EOS R System)

Canon Patent For RF 24-70mm F/2.8 And RF 28-85mm F/2.0-2.8 Lenses (EOS R System)

Here is another Canon patent application (2019-0079269) for two lenses for the Canon RF mount.

From the patent abstract:

Provided is a zoom lens including a plurality of lens units, in which an interval between each pair of adjacent lens units is changed during zooming. The plurality of lens units consist of, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a negative refractive power; and a rear lens group including at least one lens unit. An interval between the second lens unit and the third lens unit becomes larger at a telephoto end than at a wide angle end. The third lens unit is moved during focusing. Focal lengths of the second lens unit and the third lens unit, a focal length of the zoom lens at the wide angle end, and a back focus at the wide angle end are appropriately set.

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production in the next few years are these:

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