Bower SFD14C TTL Dedicated Macro Digital Ring Flash for Canon DSLR Cameras Bower SFD14C TTL Dedicated Macro Digital Ring Flash designed for Canon DSLR cameras. This specialized lighting tool provides even, shadowless illumination ideal for close-up photography, medical, and scientific imaging. The unit features a hot-shoe mounted power base with a tilting head for adjustable angles and a ring light that attaches to the front of your macro lens. It includes a ready light indicator and TTL dedication for automatic exposure control, making it a reliable choice for capturing intricate details.