SB-29S Macro Speedlight

"Two key concepts have driven Nikon flash innovations: automation and integration. The automation is found in Nikon's Matrix Balanced Fill-Flash, 3D Multi-Sensor Balanced Fill-Flash and multiple flash technologies. Integration is the seemless blending of flash capability with Nikon cameras' exposure systems. With Nikon Speedlights, you can capture the scene you seeand the one you create in your mind's eye. TTL Speedlight for Micro Nikkor and Select Lenses -- Attaches to front of Micro Nikkor and Select Nikkor lenses for most convenient and accurate flash control Main Unit and Controller -- Controller attaches to ISO hot shoe and Main Unit attaches to front of Micro Nikkor and Select Nikkor lenses Controlled Light Source -- Two flash tubes provide extremely accurate TTL flash control during ultra close-up photography New Innovations -- Main Unit can be attached to Controller on top of hot shoe; brightness of flash can be reduced incrementally down to + power; modeling light lets you check effects of flash before shooting Aperture/Reproduction Ratio panel -- Easy-to-read reproduction-ratio scale on back of Controller is matched to Micro Nikkor lenses Multiple Flash capability -- Extensive Nikon Multiple Flash System compatibility includes; SC-18 and SC-19 Cords and SU-4 Wireless Slave Flash Controller for TTL operation"