Canon has the largest collection of tilt-shift lenses available from a single manufacturer. The EF mount tilt-shift lenses can bring a new level of image control or creative freedom that you can’t easily obtain in post-production software. These lenses can also be easily adapted to mirrorless cameras such as the Sony A9 and A7RIII for excellent results.
Canon made the TS-E 24mm f/3.5 L originally in 1991 as the wide angle solution for its new tilt-shift line of lenses alongside the TS-E 45mm f/2.8 L and TS-E 95mm f/2.8 L. This was later replaced in 2009 with the TS-E 24mm f/3.5 L II as well as a new wider TS-E 17mm f/4 L.
LensFinder has searched for the finest information to be found on this lens and summed it all up here. You can browse LensFinder.com marketplace for this and many of other lenses.