I had fun earlier in the year when I rented the 24mm and later the 17mm TS-E lenses. I may rent the 24mm again some day. It seemed more useful and a little less quirky. I can't really justify owning one for the amount of use it would get. I liked doing big panoramas in which I shifted the lens to maximum at each 30º of rotation and then stitched together 17 or so images. The result was something like 87MP and the field of view of what, a 10mm lens? If I try that again, I'll also take shots rotated at 45º to fill in the corners. Rotation stops are at 30º, but it should be usable in between. I also did a poor man's Ansel Adams with the tilt, subbing a small fountain down the street for a Yosemite waterfall. I also tried the tilt with extension tubes, shifting the plane of focus to fake more depth of field with macro shots. I can see how a TS-E macro could be good for product shots.My only experience with a TS lens was the 90 TS-E I bought for product photography. I ended up realizing it wasn't wide enough, It wasn't practical to get back further from my light table and I did not want the 50mm.