SIGMA ELECTORONIC FLASH DG SUPER for Guide Number 927363 EF-610 Nikon, iTTL, 61,

Guide number 61 converts to 61/m (200/ft) and is designed to work with the latest TTL auto exposure systems in most popular digital and film SLR cameras. The auto zoom function automatically sets the optimal beam angle depending on the focal length of the lens, ranging from 24mm to 105mm, and with the built-in wide panel, the flash can cover an angle of 17mm. The bounce flash head can be tilted 90 degrees, 180 degrees left, 90 degrees right, and can also be tilted down 7 degrees, making it easy to use for close-up photography. Advanced features such as modeling flash function, multi-pulse flash, TTL wireless flash, FP (high speed) flash, rear curtain sync flash and manual flash mode allow photographers to set flash power levels up to 8 stops.