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Canon Patent: Fish-eye Lens With Reduced Distortion

Canon Patent: Fish-eye Lens With Reduced Distortion

A Canon patent for a new fish-eye lens. Canon patent application JP2025-12993 (Japan, published 01/24/2025) discusses optical formulas for a fish-eye lens with a rear conversion lens to reduce distortion…

Canon Patent: A Bunch Of Slow Pancake Lenses

Canon Patent: A Bunch Of Slow Pancake Lenses

Here is a weird Canon patent application for three pancake with rather slow aperture. Canon patent application 2024172505 (Japan, published 12/12/2024) discusses optical formulas for three pancake lenses: 21mm F5.6…

Canon Patent: 400mm F4, 500mm F5.6, And 800mm F6.3

Canon Patent: 400mm F4, 500mm F5.6, And 800mm F6.3

Here is a new Canon patent application. Canon patent application 2024163673 (Japan, published 11/22/2024) discusses optical formulas for three telephoto lenses: 400mm F4 500mm F5.6 800mm F6.3 From the patent…

Canon Patent: 400mm F4, 500mm F5.6, and 800mm F6.3

Canon Patent: 400mm F4, 500mm F5.6, and 800mm F6.3

Here is anew Canon patent application for three telephoto lenses. Canon patent application 2024163673 (Japan, published 11/22/2024) discusses optical formulas for three telephoto lenses: 400mm F4 500mm F5.6 800mm F6.3…

Canon Patent: 24-130mm F4 IS and 24-80mm F2.8 IS

Canon Patent: 24-130mm F4 IS and 24-80mm F2.8 IS

Here is a new Canon patent application for two zoom lenses. Canon patent application 2024160458 (Japan, published 11/14/2024) discusses optical formulas for two zoom lenses: 24-130mm F4 IS 24-80mm F2.8…

Canon Patent: Automatic Tilt-Shift Adjustment

Canon Patent: Automatic Tilt-Shift Adjustment

A new Canon patent, regarding the operation of tilt-shift lenses: automatic setting. Canon patent 2024-157119A (Japan published 11/7/2024) discusses methods and technology to automatically set the tilt in a tilt-shift…

Canon Patent: 70-150mm F1.8 Lens With Inner Zoom

Canon Patent: 70-150mm F1.8 Lens With Inner Zoom

Here is a new Canon patent application for a 70-150mm F1.8 lens (70-200mm F2.8 and 70-150mm F2 lenses are also mentioned in the patent literature) Canon patent application 2024-154138 (Japan, published…

Canon Patent: Lens Design Based On EF 135mm f/2

Canon Patent: Lens Design Based On EF 135mm f/2

A new Canon patent application for a lens that seems based on the optical design of the EF 135mm f/2. Canon patent application 2024133316 (Japan, published 10/1/2024) discusses optical formulas…

Canon Patent: 200-1000mm F6.3-9 IS Lens For RF Mounts

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: 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: 15-28mm F2.8 And 17-30mm F2.8 Lenses

Canon Patent: 15-28mm F2.8 And 17-30mm F2.8 Lenses

Canon patent application 2024101615 (Japan, published 7/30/2024) discusses optical formulas for two lenses: 15-28mm F2.8 17-30mm F2.8 From the patent literature: A zoom lens that is compact yet has a…

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