New RF mount Tilt-Shift lenses have been rumored for quite some time, and one of the big features coming is that they will be the first tilt-shift lenses that we know of to have autofocus.
We have seen a series of patents for these lenses, and in the last six months or so, they have become far more detailed in how they are going to work.
We do believe they will require the next generation cameras from Canon to utilise their entire feature set. They will obviously still mount to any RF mount camera, but we don’t know what features may not work on current and older cameras.
We do not currently know any further details in regards to focal length or speed, but we do believe we’ll hear something official about them by the end of 2024.
A few detailed Canon RF Mount AF Tilt-Shift Lens Patents
- DPAF improvements for Tilt-Shift AF lenses
- Automated tilt movements
- High precision AF for Tilt-Shift lenses
- The ability to hand hold the lens while it tilts and shifts
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I’ll wait to see what’s offered. My personal hope is for the movements to be encoded. I’d be interested in a 14mm TS.
I use my shift lens (24mm) exclusively handheld. Auto-tilt welcome, AF could have been dispensed with. Yet, pro users might have a different justified opinion.
If the promise of the patents is delivered on, then auto-tilting and focusing of these lenses based on a user defined focal plane (as specified by three selected points in the FoV) will completely revolutionize this area of photography.
Not to mention speed up the taking of images utilizing tilt-shift lenses by orders of magnitude.
Another application with motors in the lens would be push-button landscape stitching in the camera with raw files being the result.
That said, it's never a photo I need to take quickly - but other may have other needs. Anyway, if it can be made easier, why not? Still I won't run after those lenses.
We know some people think "manual focus is too hard" as I remember one of the main complaints about no Sigma or Tamron on RF regarded AF. So, that leads me to believe more people would be interested in tilt/shift with AF.
One of the patents seemed to be about calculations for the tilt and autofocus. I can imagine where if the photographer needed two moving subjects in focus it could produce some impressive images but we don't know for sure if these lenses will go with that.
I haven't thought of any reason it should be important for architecture or landscape.
Your post is pretty much exactly what I would say as well. The whole process of using a tilt shift lens, especially the tilting function - not just the final focusing - is, or at least should be, a studied and deliberate matter, and that final focusing action is the least time consuming part of it, although it can require knowledge of the optical principles that apply. Dumbing the process down to make it “automatically” accessible to people who don’t understand how it works will be of little benefit to most users.
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