The Canon Digital Learning Center published the Canon Macro Ring Lite MR-14EX II Guidebook (download here):

Have you been intrigued by the possibilities of close-up and macro shooting, but felt limited by your understanding of lighting? Canon has long provided the EOS photographer with two specialized flashes for close-up shooting, but their operation and possibilities have been a bit of a mystery to users who haven’t experienced them first-hand.

With the launch of Canon’s latest macro flash — the Macro Ring Lite MR-14EX II — Canon, Inc. has developed a guide that explains the unit’s operation and how it can be realistically applied in different situations. Whether you simply want to document a hobby, photograph small objects to display or sell on-line, or even shoot portraits, the combination of this new Macro Ring Lite and a Canon macro lens may be all you need to get creative results.

Written for the photographer who is new to macro shooting, this opens the door to how macro flash may be a lot easier to use than he or she may have previously thought. Examples are as easy to understand as the manner in which the guide is written. Canon’s hope is that with this guidebook, the possibilities and fun of macro shooting with flash will be even more within reach of the casual EOS photographer, as well as the dedicated macro enthusiast.

The Canon MR-14EX II Macro Ring Light can be purchased for $549 at B&H Photo and Adorama.