The Vivitar DF-586 Dedicated Macro Ring Flash for Canon delivers the "shadowless" direct light ideal for macro photography, and it's dedicated to Canon DSLR cameras. It comes with rings to attach to lenses with 52, 55, 58 and 62mm front threads, it has a (100 ISO) guide number of 18m, full I-TTL dedication for Canon DSLRs, and an exposure confirmation auto check lamp. It delivers app. 150-200 flashes on a battery charge and recycles in 2-3 seconds. The angle of illumination covers lenses 50mm and longer (35mm equivalent) and it's powered by easily found AA alkaline, NiCAd, or Ni-MH batteries. Batteries are not included.
Full TTL dedicated macro ring flash for Canon digital SLRs
Guide Number: 18m (ISO 100)
Angle of Illumination: 50mm and above (35mm equivalent)
IGBT (Insulated Gate Dipolar Transistor) and Series Circuitry
Auto Check Indicator
EV exposure control compatible with DSLR camera
Includes rings to fit lenses with 52, 55, 58 and 62mm filter threads