Shooting Without distortion
The problem with using wide-angle lenses, which can fit entire buildings nicely, is that they make parallel lines look like they converge instead. Wouldn't it be great if you could photograph a building, without having to correct for the perspective distortion in Photoshop later?
Well you can, using tilt-shift lenses. Also called perspective control lenses, they let you tilt and/or shift the lens so that lines do not distort and remain parallel. Tilt-shift lenses have also become famous for creating the 'fake miniatures' look, because they allow you to create selective planes of focus. While normal lenses let you blur what's in front or behind your subject, tilt-shift lenses let you selectively blur entire areas of a scene.