One of the problems that mirrorless cameras have is major defocus. This is when you attempt to focus on the subject with the lens completely out of focus. There's not enough contrast for the camera to determine just how far it needs to move the lens to reach focus on the target.
On DSLRs, Canon [. . . ]
The post Canon Patent Application: Major Defocus improvements appeared first on Canon Rumors.
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Компания Canon зарегистрировала новый патент под номером JP2021-196547. В его документации указаны три новых светосильных фиксобъектива с функцией Defocus Smoothing (DS). Данная оптическая технология впервые была представлена в объективе Canon RF 85mm F/1. photar.ru »
2021-12-29 21:52
Does that photo of the new Canon 85mm f/1. 2L DS IS lens look a bit dark to you? Well, that’s because the new Defocus Smoothing coating Canon applied to its latest prime lens isn’t without its tradeoffs. petapixel.com »
2019-10-26 19:35
Canon announced the new RF 85mm f/1. 2L DS IS lens for its full-frame mirrorless cameras today, and the $3,000 lens is the very first Canon lens to feature a new technology called Defocus Smoothing (DS). petapixel.com »
2019-10-24 20:17
Defocus smoothing is a new coating from Canon that will improve the look of out of focus areas/bokeh in your images. Canon USA explains the Read more... canonrumors.com »
2019-10-24 15:07
Читать далее Анонс: Canon Lens RF 85mm f1.2L USM DS (DEFOCUS SMOOTHING)
radojuva.com »2019-10-24 08:57
Canon, по-видимому, готовится представить миру новую технологию объективов. Функция расфокусировки (Defocus Smoothing) будет отображаться на будущих объективах как аббревиатура «DS»... © PhotoWebExpo, 2019, https://photowebexpo.ru/news/feed/Canon-predstavit-funktziy-Defocus-Smoothing-DS photowebexpo.ru »
2019-02-13 00:12
Canon is apparently getting ready to introduce a new lens technology to the world. It’s called “defocus smoothing,” and it’ll appear as a DS feature abbreviation on future lenses. petapixel.com »
2019-02-12 22:08
It appears Canon has trademarked “DS” or defocus smoothing and that the feature will appear in an upcoming Canon RF 85mm f/1.2L USM DS. It Read more... canonrumors.com »
2019-02-12 15:10
In this patent application (2024-111453), Canon explores the super telephoto zooms that ended up with the Canon RF 200-800mm f/6.3-9 IS USM. However, there are some other interesting designs in here worth exploring so let's go through them and you'll have to tell me if Canon should have gone for broke and made a 200-1000mm. [...] Source
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
In this patent application (2024-078721), Canon is showing off some embodiments of some smaller standard F2. 8 zooms. While at first glance, this seems unlikely we should also keep in mind that Tamron's smaller 28-70 F2.
In this patent application (2024-076793), Canon shows off some embodiments of some lenses with internal zoom and focusing. The first embodiment that I'm going to talk about is a constant 60mm in lens length and a constant F4 aperture 12-30mm lens.
This is an intriguing patent application (2024-074321) because there are a few different embodiments that deserve a closer look than I originally thought reading through it. First, the 20-60mm F2. 8 would cover a lot of focal length bases for me.
In this patent application (2024-073200) Canon is looking at improving the racking of the lens from near to far to find focus quicker. As you may be aware, major defocus happens when the contrast is too far out of focus that it's just soft with no visible contrast. When this happens, it's nearly impossible for [...]
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 [...]