Sigma EM-140 DG Macro Ring Flash - Canon Dedicated

The Sigma EM-140 DG Macro, Canon Dedicated Ring Flash is ideal for photographing subjects in fine detail when the shadowless mode is used making it incredibly useful for specialist uses. Dual flash tubes can fire simultaneously or separately. Using only one flash tube creates a shadow which can give a three-dimensional feeling to the subject. The flash features a guide number of 14 w/ISO 100, making it a fantastic tool to illuminate the scene before you.