Canon Patent: RF-S 14-30mm F4-6.3 IS STM PZ
A noteworthy Canon patent application, published on April 4, 2025, has surfaced. It shares a similar design to the recently announced RF-S 14-30mm F4-6.3 IS STM PZ. A comparable patent…
Canon Patent: RF 65mm F2 IS, RF-S 50mm F2 IS, and RF-S 85mm F2 IS
Canon’s patent application 2024172507 (Japan, published 12/12/2024) , proposes an optical system with a unique design. It includes examples of compatible lenses, such as the RF 65mm F2 IS, RF-S…
Canon Patent: Canon RF 28-70mm f/2.8 IS STM (the released lens?)
Here is a new Canon patent, and it appear it is referring to the recently released RF 28-70mm f/2.8 IS STM lens. Canon patent 2024140521 (Japan, published 10/10/2024) discusses optical…
Canon Patent: 200-1000mm F6.3-9 IS Lens For RF Mounts
Here is a new Canon patent application. Canon patent application 2024111453 (Japan, published 8/19/2024) discusses optical formulas for a telephoto zoom lens, the 200-1000mm F6.3-9 IS. Example 1 Focal length:…
Canon Patent: RF 28-70mm F2.8 Lens
Canon patent application 2024104916 (Japan, published on August 6, 2024) discusses various optical formulas for a yet to be released RF lens: 28-70mm f2.8. From the patent literature: Description of the…
Canon Patent: RF-S 33mm f/1.8 And Other Lenses
Here is a new Canon patent application for a bunch of lenses, of which one might already have releases. Canon patent application 2024082112 (Japan, published 6/19/2024) discusses optical formulas for…
Canon Patent: RF-S 14-30mm f/4-6.3 And RF 20-50mm f/4-5.6
Here is a new Canon patent application, one for a RF-S and one for a RF lens. Canon patent application 2024072459 (Japan, 5/28/2024) discusses optical formulas for two RF-mount lenses:…
Canon Patent: 12-24mm f/2.8 And 14-20mm f/2 For RF-Mount
Here is a new Canon patent application, as usual for RF-mount lenses. Canon patent application 2024042622 (japan, published 3/28/2024) discusses optical formulas for two lenses for full frame mirrorless cameras…
Canon Patent: RF 24-105mm f/2.8 Z And RF 15-60mm f/2.8 Z Lenses
A new Canon patent application for two lenses featuring Canon's new silent USM zoom technology (hence the "Z"). Canon patent application 2024025100 (Japan, published 02/26/2024) discusses optical formulas and methods…
Canon Patent: RF-S 15-45mm F3.5-6.3 Lens For APS-C Imaging Sensors
And here is another Canon patent application for the RF-S mount. Canon patent 2023182958 (Japan, published 2023-12-27) discusses optical formulas for a lens for the RF-S mount, 15-45mm F3.5-6.3. From…
Canon Patent: 20-120mm F4 And 18-100mm F4 For RF-S Mount
A new Canon patent application (well, not really new) for two lenses for the RF-S mount. Canon patent application 2023182926 (Japan, published 2023-12-27) discusses optical formulas for two RF-S mount…
Canon Patent: RF 70-200mm F2-2.8 DS, RF 70-135mm F2.5 DS, More Lenses
A new Canon patent application for RF mount lenses with "Defocus Smoothing" (DS) optical technology. More about Defocus Smoothing is listed here. Canon patent application 2023170260 (Japan, published 12/1/2023) discusses…
Canon Patent: RF 70mm F2, RF 70mm F2.8, RF 75mm F2.4, and RF 85mm F2.8
A new Canon patent application for relatively fast prime lenses. Canon patent application 2023149130 (Japan, published 10/12/2023) discusses optical formulas for prime lenses for the RF mount: RF 70mm F2…
Canon Patent: 11mm F2, 13mm F2, 22mm F2, And 30mm F2 Lenses For RF-S Mount
Here is a new Canon patent application, for a bunch of fast primes for the RF-S mount. Canon patent application P2023130885 (Japan, published 9/21/2023) discusses optical formulas for RF-S mount…
Canon Patent: RF 100-300mm F2.8 Telephoto Zoom Lens
Here is a new Canon patent application, yet for another RF mount lens. A rather interesting one, although it refers to ab already released lens: the Canon RF 100-300mm f/2.8L…
Canon Patent: RF 24-300mm f/2.8-5.6 IS, RF 24-240mm f/2-5.6 IS And RF 40-350mm f/2.8-5.6 IS
And another Canon patent for lenses for the RF mount. Canon patent application 2023104137 (Japan, published 7/28/2023) discusses optical formulas for three zoom lenses for the RF mount: RF 24-300mm…
Canon Patent: RF 300mm f/2.8 IS And RF 400mm f/2.8 IS
And yet another Canon patent application: two telephoto fast primes for the RF mount. Canon patent application 2023104022 (Japan, published 7/28/2023) discusses optical formulas for two fast telephoto prime lenses…
Canon Patent: RF 15mm f/2 And RF 12mm f/2.8 Lenses
And here is another Canon patent application, for two RF mount lenses. Canon patent application 023104029 (Japan, 7/28/2023) discusses optical formulas for two fast prime lenses for the RF mount:…
Canon Patent: RF 135mm f/1.8L IS USM Lens For The EOS R Camera System
And yet another Canon patent application for an RF-mount lens. Canon patent application 2023099390 (Japan, published 7/13/2023) discusses optical formulas for what appears to be an RF 135mm f/1.8L IS…
Canon Patent: RF 100-300mm f/2.8L IS USM Lens
A new Canon patent application was spotted. Canon patent application 2023099388 (Japan, published 7/13/2023) discusses optical formulas for what appears to be an RF 100-300mm f/2.8L IS USM lens for…