Canon Patent Application: Canon TS-R lenses

[Canon Rumors]

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-shit lens, which involved moving elements instead of shifting and swinging the entire

See full article...

 

[Loswr]

Nice. I've been considering buying the TS-E 135/4 but have held off (it's a want, definitely not a need). Hopefully one of these becomes a product...

 

[kirbic]

LOL ought to fix the typo "tilt-shit" in paragraph 2 ;-)

 

[bbasiaga]

So, if the image circle is just standard FF, does that mean no more shift-panoramas are possible? Only tilt effects? Perhaps for telephoto this is not as big an issue. But for the eventual wider angles the shifted images seemed to work because the image circle was larger.

Or maybe I just am not understanding something. I have a 24mm T/S from Rokinon that I have used a few times, shifted but not tilted, to get perspective right on buildings or trees and stuff where I didn't want converging lines. Not sure how that is accomplished in this new design where the front element has to stay centered. Some kind of prism element that moves inside the lens?

_Brian

 

[P-visie]

So, if the image circle is just standard FF, does that mean no more shift-panoramas are possible? Only tilt effects? Perhaps for telephoto this is not as big an issue. But for the eventual wider angles the shifted images seemed to work because the image circle was larger.

Or maybe I just am not understanding something. I have a 24mm T/S from Rokinon that I have used a few times, shifted but not tilted, to get perspective right on buildings or trees and stuff where I didn't want converging lines. Not sure how that is accomplished in this new design where the front element has to stay centered. Some kind of prism element that moves inside the lens?

_Brian

The problem description in the google translated patent application on Asobinet (link) is: “ To obtain an optical system that can greatly tilt an in-focus object surface while reducing composition shift while the entire system is small. “

The text below the lens diagrams is “It's an optical system that has a short back focal length and is intended for a tilt lens for mirrorless cameras. It seems that they are trying to solve the problem of the composition shifting during tilt shooting by providing multiple lens sections that move perpendicular to the optical axis direction.”

My interpretation is that the patent application is about correcting the composition shift when a lens is tilted, rather than a type of tilt shift lens that works without shifting lens elements to correct converging lines.

 

[scyrene]

Any indication of the close focusing capabilities of these formulae? I'm thinking TS ~200mm Macro, kill two birds.

 

[Richard CR]

LOL ought to fix the typo "tilt-shit" in paragraph 2 ;-)

whoops!

 

[Stig Nygaard]

whoops!

Freudian slip?

 

[EricN]

The 200mm f/2.8 seems very interesting to me.

Freudian slip?

In this case, "Freudian shit!"

Richard, it is correct that should this patent be chosen for a marketed product, the design not need to be only using the principle that is described?

 

[David - Sydney]

What is the usage for a telephoto tilt-shift? I can understand the usage of a wide angle for architecture and landscape keystone correction, panoramas etc but less so for the telephoto focal lengths. A long TS-R macro would be combine 2 niches!

 

[GMCPhotographics]

What a brilliant piece of design engineering. Finally a worthy sucessor to the mighty ef 180mm f3.5 L Macro. A TS-R variant....where only a few internal elements tilt and shift....brilliant!

 

[wopbv4]

Any indication of the close focusing capabilities of these formulae? I'm thinking TS ~200mm Macro, kill two birds.

Indeed, a 200 mm Macro with TS would be fantastic.

 

[David - Sydney]

Is there any indication in the patent about macro capability?

 

[DhlcadR6]

Can anyone enlighten me why need TS on telephoto when UWA is much more needed?

 

[EricN]

Can anyone enlighten me why need TS on telephoto when UWA is much more needed?

Canon most likely is working on both with different people

 

[Sean C]

Can anyone enlighten me why need TS on telephoto when UWA is much more needed?

'More needed' is a different discussion from 'what could you use it for'.
A past stage event my one option not blocked by the audience was a perch above and to the left of the stage, with light low enough I wanted to shoot at F2.8 so my DOF was narrow. I could get my main subject in focus, but not across the stage.
Lets say we've got a future camera with smart phone features taking advantage of full time live view, and a lens that shifts under camera control similar to how IS works. Phone apps can let you draw across a room with the camera and it'll measure the room in 3D, which it's able to do via understanding the 3D space. With a limited version of that, you could draw a line on the stage through the viewfinder that you want the plain of focus to be on. Then the auto-tilt handles it, optionally making it vertical as well. You could get results close(er) to being centered on the stage with no crowd in the way.
I don't know if there is a market for it, but that's how I'd use it. I'm really wondering if they've got a design that can combine IS and tilt automation in one group. (i.e. could you do both with one cleverly designed group or do they need to be separate to have both)

 

[EricN]

'More needed' is a different discussion from 'what could you use it for'.
A past stage event my one option not blocked by the audience was a perch above and to the left of the stage, with light low enough I wanted to shoot at F2.8 so my DOF was narrow. I could get my main subject in focus, but not across the stage.
Lets say we've got a future camera with smart phone features taking advantage of full time live view, and a lens that shifts under camera control similar to how IS works. Phone apps can let you draw across a room with the camera and it'll measure the room in 3D, which it's able to do via understanding the 3D space. With a limited version of that, you could draw a line on the stage through the viewfinder that you want the plain of focus to be on. Then the auto-tilt handles it, optionally making it vertical as well. You could get results close(er) to being centered on the stage with no crowd in the way.
I don't know if there is a market for it, but that's how I'd use it. I'm really wondering if they've got a design that can combine IS and tilt automation in one group. (i.e. could you do both with one cleverly designed group or do they need to be separate to have both)

There is definitely a market for this, but it's difficult to say what size it is.

 

[DhlcadR6]

'More needed' is a different discussion from 'what could you use it for'.
A past stage event my one option not blocked by the audience was a perch above and to the left of the stage, with light low enough I wanted to shoot at F2.8 so my DOF was narrow. I could get my main subject in focus, but not across the stage.
Lets say we've got a future camera with smart phone features taking advantage of full time live view, and a lens that shifts under camera control similar to how IS works. Phone apps can let you draw across a room with the camera and it'll measure the room in 3D, which it's able to do via understanding the 3D space. With a limited version of that, you could draw a line on the stage through the viewfinder that you want the plain of focus to be on. Then the auto-tilt handles it, optionally making it vertical as well. You could get results close(er) to being centered on the stage with no crowd in the way.
I don't know if there is a market for it, but that's how I'd use it. I'm really wondering if they've got a design that can combine IS and tilt automation in one group. (i.e. could you do both with one cleverly designed group or do they need to be separate to have both)

You get what I meant. My wording wasn't precise. Thanks again.

 

[EOS 4 Life]

There is definitely a market for this, but it's difficult to say what size it is.

Tilt/shift with IS and AF would bring in an entire new market.

 

[koenkooi]

Tilt/shift with IS and AF would bring in an entire new market.

Especially if the 180mm f/3.5 can do 1:1 macro like its EF cousin.