Laowa 12mm F/2.8 W/ Magic Shift Converter Versus Canon TS-E 17mm F/4L
Architectural photography isn't the cheapest genre of photography, mainly due to the fact that tilt-shift lenses are a little expensive. Sure there are cheaper options, however, they generally perform worse and may not be worth it. A company called Venus Optics might just have the solution with their Magic Shift Converter.