Canon RF Supertelephoto Lenses with built-in Extenders Appear in Latest Patent

In this patent application (2025-028297), Canon discusses super-telephoto prime lenses with built-in teleconverters. Unlike normal teleconverters, which you add to the end of the lens and the extender attaches between the lens and the camera, these insert optical elements inside the lens itself.

This is a far more optimized solution that usually results in better [. . . ]

The post Canon RF Supertelephoto Lenses with built-in Extenders Appear in Latest Patent appeared first on Canon Rumors.

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canon patent built-in lens lenses

2025-3-5 13:36

Источник: canonrumors.com

canon patent → Результатов: 126 / canon patent - фото


Canon Inc. Places in Top-10 in U.S. Patent Rankings for 41st Straight Year, Ranks First for U.S. patents granted among Japanese companies for 20th Consecutive Time

In 2024, Canon ranked ninth in the number of patents registered in the United States Patent and Trademark Office (USPTO), placing it in the world’s top 10 for 41 consecutive years, according to IFI CLAIMS Patent Services, a US-based patent research firm. canonrumors.com »

2025-01-20 16:07

Canon Patent Application: Small Primes for Compact APS-C and Full Frame

At first, when I was writing up this patent application (2024-082112), I was leaning toward what others are mentioning on the internet that these are for ILC (interchangeable lens cameras) but after reading more, and looking at the back focus distances involved, I think it's more likely that these are for a compact rangefinder styled [...] Source canonrumors.com »

2024-06-19 08:20

Canon Patent Application: Lens Magnetic Flux Improvements

In this patent application (2024-072582) Canon discusses improving the magnets that drive the motors on various lenses that attach to the camera. This is to prevent the magnetic flux from causing image artifacts especially at high ISO when the sensor is operating at a extremely high level of amplification and thus, sensitivity. I seem to [...] canonrumors.com »

2024-05-29 05:59

Canon Patent Application: Canon TS-R lenses

Do you remember those two patent applications here and here that we talked about Canon looking at doing motorized tilt and shift with the possibility of fine AF control as well? Well, those patent applications were based on a different kind of tilt-shift lens, which involved moving elements instead of shifting and swinging the entire [. canonrumors.com »

2023-11-09 18:00

Patent: Canon continues to develop fast RF prime lens optical formulas

Canon continues to patent optical formulas for fast RF mount prime lenses. This patent deals with limiting aberration fluctuation when focusing. Canon is currently missing Read more... The post Patent: Canon continues to develop fast RF prime lens optical formulas appeared first on Canon Rumors - Your best source for Canon rumors, leaks and gossip. canonrumors.com »

2021-12-27 22:16

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