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Canon Patent: 18-100mm F4 And 14-60mm F4 Lenses

Canon Patent: 18-100mm F4 And 14-60mm F4 Lenses

Another Canon patent application today, for a 18-100mm f/4 lens and a 14-60mm f/4 lens. Canon patent application 2023018409 (Japan, published 2/8/2023) discusses optical formulas for two lenses we think…

Canon Patent: RF 100-300mm F2.8 X 1.4 Extender Lens

Canon Patent: RF 100-300mm F2.8 x 1.4 Extender Lens

A new Canon patent application for another RF mount lens. Canon patent application 2023018429 (Japan, published 2/8/2023) discusses optical formulas for an RF 100-300mm F2.8 x 1.4 extender lens. From…

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