The canon ts e 17mm f4l ultra wide angle tilt and shift lens has been specifically designed by canon for architectural photography featuring low distortion and excellent edge to edge sharpness lens offers independent rotation of tilt and shift mechanisms to allow perspective and depth of field to be controlled separately with a 104 diagonal field of view combined with 65 of tilt plus 12mm shift and 90 of rotation on both tilt and shift mechanisms this is one of most flexible len