As I understand it, tilt-shifts are for manipulating depth of field, not achieving wider shots. I'm sure someone will come along and correct me though.
Your right, and wrong.
A tilt/shift lens can't/doesn't make a single image any wider than a single image from a non tilt shift lens of equal focal length ie 50mm t/s lens v normal 50mm lens. The shift function of a tilt and shift lens (or field camera) is however often used to make multiple exposures of a scene which can then be stitched together. Because the film plane stays put there's a lot less distortion etc than you might normally get when making a panoramic or stitched image.
Your right, and wrong.
A tilt/shift lens can't/doesn't make a single image any wider than a single image from a non tilt shift lens of equal focal length ie 50mm t/s lens v normal 50mm lens. The shift function of a tilt and shift lens (or field camera) is however often used to make multiple exposures of a scene which can then be stitched together. Because the film plane stays put there's a lot less distortion etc than you might normally get when making a panoramic or stitched image.