The Nikon SB-R200 Remote Speedlight gives you more lighting options for macro and close-up photography. This portable wireless remote flash unit portable wireless remote flash unit controls Nikon's Advanced Wireless Lighting system. The attachment ring is used to connect the SB-R200 to the front of the lens, via an Attachment Ring SX-1, held in the photographer's hand, or freely positioned by using the Speedlight Stand AS-20 (included). The kit has a variety of accessories to help users enjoy close-up flash shooting, such as the Extreme Close-Up Positioning Adapter SW-11, Color Filter Set SJ-R200, Diffuser SW-12 and Flexible Arm Clip SW-C1. Bounce Capability - Flash head tilts down (toward the optical axis) to 60° with click stops at every 15°, or up to 45° (in the opposite direction) with click stops at every 15° Angle of Coverage - 60° vertical; 78° horizontal Flash Mode - i-TTL, D-TTL, TTL (film-based cameras); M (manual) Recycling Time - Approx. 6 seconds or less Number of flashes - Approx. 290 Flash Duration - Approx. 600 ms White LED target light Ready-light display Dedicated shoe for Attachment Ring (SX-1) or Speedlight Stand (AS-20) Power Source - One CR123A (3V) lithium battery Dimensions (WxHxD) - 3.1 x 3.0 x 2.2 (80 x 75 x 55 mm) Weight - 4.2 oz. (120g)