The XL2 bracket is designed for photographers preferring to use TTL metering. With it&8217;s rotating shoe mount it enables the TTL PORTS to always face the camera position. This helps to enhance the signal range from the triggering device allowing you to take advantage of positioning the units higher or further away than you would with normal none rotating brackets. With an additional shoe built in for radio transmitters & a fully tilting bracket assembly the XL2 bracket is highly portable & can take any of the accessories in the XL range.