Adobe Flash | Flash | Flash Gordon | Der Ring des Nibelungen | USB flash drive | The Flash | Grandmaster Flash | Ring of Honor | The Fellowship of the Ring | The Ring (magazine) | Ring of Fire | The Ring | Ring | The Lord of the Rings: The Fellowship of the Ring | ''The Ring'' | Flash Gordon (serial) | Flash (comics) | Flash animation | flash | Bull Ring, Birmingham | The Promise Ring | Ring 2 | Twin Ring Motegi | Ring Round the Moon | Flash Gordon Conquers the Universe | E-Ring | Bull Ring | Sheffield Inner Ring Road | Scarff ring | Ring of Fire (song) |
The outer barrel is grooved to accept Canon's MR-14 ring flash which can be used as the principal light source for close-ups or as on-axis fill lighting for portraits.