According to USPTO, Canon has just filed a series of f/1.8 RF mount prime lenses. You can take a look at below:
Northlight Image has just uncovered a patent showing optical formulas for more super-telephoto zoom lenses (RF 120-700mm f/4.5-8 & RF 100-600mm f/4.5-7.1) for the RF mount mirrorless cameras. Since Canon will soon announce the RF 100-500mm f/4.5-7.1L IS USM lens, will these new super telephoto zoom lenses coming to real ? Stay tuned.
Canon Japan has filed a new lens patent for RF mount lenses: RF 70-300mm f/3.5-5.6 Lens & RF 100-500mm f/5.6-6.4 Lens.
Canon has just filed a new lens patent: RF 8mm f/4 Fisheye lens, this will be first fisheye lens for Canon RF mount.
Canon has just filed two new lens patents for Canon RF mount full frame mirrorless cameras. They are RF 85mm f/1.8 lens and RF 100mm f/2.8 lens. You can take a look at details below:
Canon has filed a new lens patent for Canon EOS R full frame mirrorless cameras. The lens patent is RF 13-21mm f/2.8L lens. See the details below:
Canon has already released their first RF mount internal zoom lens: RF 70-200mm f/2.8L IS USM Lens (B&H Photo Video/Adorama/Amazon). This lens turns out one of the best selling lenses currently. According to latest Canon Japan patent, Canon may also announce a new RF 70-200mm f/4L internal zoom lens.
Canon has just filed two new RF lens patent for standard zoom lenses: RF 24-85mm f/2.8L and RF 24-100mm f/2.8L.
Canon recently has registered several new RF mount superzoom lens patents, they are RF 28-280mm f/2.8, RF 28-135mm f/4, RF 24-170mm f/4. The RF 28-280mm f/2.8 lens should be a very large and heavy lens if it is real.