In this Canon Patent Application (2023-153460) Canon discusses both the need and the method of changing focusing during shift or tilt operations.
As with the other patent applications in this series, I should first mention that the tilting and shifting discussed seem to be internal and done by moving optical elements. That question has been asked or commented on a few times – so it’s not your traditional tilt-shift lens.
This patent discusses changing the AF point via the touch panel that will change focus along the focal plane, even if it’s tilted which can be really handy.
We have talked about a few of these tilt-shift patent applications and they are relatively spaced out and discuss various methods of control of the same style of mechanical lens.
With so many various patents – this reminds me of the leadup with the patent applications that we got with Canon’s IBIS. The applications were all coming out before it was announced, we knew they were really looking at dotting every i and crossing every t and this is starting to look a bit familiar. It doesn’t mean it’s around the corner, but at this time I’d be a little surprised if we didn’t get something. I know Craig would be quite upset if it didn’t materialize- he’s counting the days until he can get his hands on a TS-E AF.
But as always the proviso – these are just patent applications, they aren’t patents yet, and they may never be. And they certainly don’t guarantee we’ll see these in a product in the future, but it’s a glimpse into what Canon has been researching.
Source: Japan Patent Office 2023-153460 Via: Asobinet
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