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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 lens. Finally we see a patent application (Japan 2023-162714) detailing one of these tilt-shift lenses.
In this patent application, we have a full spread of TS-R lenses. Enough to even make Craig happy. They all seem to be in the telephoto range, so I wouldn’t be surprised to see another patent application detailing the wider angle TS-R lenses.
What I find interesting is that since the lens isn’t shifting position, the image circle can be the standard full-frame 21.64mm. I would think this would lead to comparatively smaller and lighter tilt-shift lenses as they don’t have to project a much bigger image circle. However, the element design shows that these aren’t your normal slow primes in terms of complexity.
Canon TS-R 180mm F3.5
Focal length 179.88
F number 3.60
Angle of view 6.86
Image height 21.64
Lens total length 1 98.10
BF 27.03
Canon TS-R 200mm F2.8
Focal length 193.86
F number 2.88
Angle of view 6.37
Image height 21.64
Lens total length 182.73
BF 26.48
Canon TS-R 100mm F2.8
Focal length 97.23
F number 2.88
Angle of view 12.54
Image height 21.64
Lens total length 176.52
BF 14.71
Canon TS-R 90mm F3.5
Focal length 89.85
F number 3.50
Angle of view 13.54
Image height 21.64
Lens total length 184.06
BF 28.19
Of course, with all patent applications, this is simply a patent application – it may or may not end up being an actual product. But it’s always interesting to see what Canon is researching.
Source: Japan Patent Office 2023-162714
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