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Anonymous
Technically speaking, a Lensbaby IS a tilt-shift lens. You can tilt it and you can shift it, it just doesn't shift very much. However, the optical quality on a lensbaby is intentionally very bad and there is no way to precisely control and set the shift or tilt amount, so it would not be a very effective tilt shift lens in practice.
What is posted in OP is very much a tilt shift lens. Given that it uses a good 6x6 lens as it's base, and what looks like pretty flexible bellows, it could in fact be a very good tilt shift lens optically speaking. The only think it's missing is some kind of method to precisely control and lock focus in position, though that would be pretty easy to make.
Look at a view camera, that is the very essence of a tilt shift lens. The whole camera is designed to permit tilting and shifting of the lens. A lensbaby and OP are both implementations of the same basic design with an SLR used instead of a film back.
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