VILTROX JY-670C Close-up E-TTL ring flash ,Macro Ring Light TTL Ring Flash Light with AF Assist Lamp for Canon EOS 5d 6D 7D T6i T7i 77D ,for dental medical work High definition LCD panel, Completely compatible with Canon ETTL system caome with 6 adapter ring 49/52/55/58/62/67mm ,enable flashlight to couple with lens. mode/ Multi Macro dedicated flash, support E-TTLII/ E-TTL/TTL, Maximum GN. 14 (ISO 100, meter), Flash ratio control Various flash functions: Suitable for macro shooting, Portrait shooting, Jewelry shooting, Oral medicine shooting, etc. Get get the CE, EMC, FCC, RoHS certification , the quality is assured. it comes with 60-Days return-back guarantee when you received the item but you do not satisfied with our item.