Designed for architectural photography the ts e 17mm f4l exhibits low distortion and excellent edge to edge sharpness as well as independent rotation of the tilt and shift mechanisms expanding the possibilities for tilt and shift photography the ts e 17mm f4l is an ultra wide angle tilt and shift lens providing wide angle views for cameras with aps c and full frame sensors tilt and shift movements can be rotated independently of each other allowing perspective and depth of field to be co