Canon has been on quite the roll when it comes to lens design lately, and they seem to be showing no signs of slowing down, as a new patent has emerged that shows a truly ridiculous lens.
Canon has filed a patent for an RF mirrorless full frame lens with a focal length of 28-280mm and a constant aperture of f/2.8, a lens that is unheard of in the standard photo and video market. Such a lens would be undoubtedly enormous and likely quite expensive, but would also be tremendously useful for people like wildlife and sports photographers. I absolutely love my 120-300mm f/2.8 right now, and adding the rest of the range down to 28mm would be unbelievably useful, even if such a lens was rather cumbersome.
However, superzoom designs tend to have noticeable sacrifices in image quality (as the standard model 28-300mm f/3.5-5.6 shows), but with Canon's new advances and the new mount, it would be interesting to see what they could accomplish. Of course, it is important to remember that companies patent lens designs that never make it to market all the time, but even if this one doesn't see the light of day, it's great to see Canon pushing boundaries.
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