Canon Patents Cheaper 28mm Zooms

Oct 7, 2021 | Canon, Lenses, News, Patents

Slower versions of Canon’s well-regarded RF 28-70 f/2 zoom lens have been designed, and a patent application filed. The two primary variants both start off at f/2.8, with one keeping that up through the zoom range to about 70mm; and the other necking down to an f/5.6 by the time it reaches a zoom range of about 90mm.

canon 28-90mm variable zoom

As Canon already has two versions of the 24-70mm zoom range – and f/2.8 and an f/4 model – the embodiment most likely to be of interest here is the variable aperture one that extends to 90mm.

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