The Nikon R1C1 Kit includes a Commander unite and two SB-R200 Remote Speedlights, plus accessories to provide wirelessly controlled automated close-up and macro lighting, with TTL exposure calculation and synchronization carried out using infrared wireless communication between the camera’s metering system and the remote flash units. The kit includes adapters for front lighting, filters, and attachment rings for the most popular Nikkor lens filter screw threads. Additional SB-R200 units or other Nikon Speedlights can be added to enhance subject illumination. For use with any Nikon camera, including DSLRs without built-in flash (e.g. D3/4 series).