(READ DES) Meike MK-14EXT TTL LED Macro Ring Flash Light for Nikon D4 D800 D7100
(READ DESCRIPTION) Meike MK-14EXT TTL LED Macro Ring Flash Light for Nikon D4 D800 D7100. BATTERIES NOT INCLUDED. MISSING RINGS - ONLY HAVE TWO 72 AND 77. RING FLASH IS NOT WORKING OR MAYBE I DON'T KNOW HOW TO TURN ON.