Looking to sell or upgrade your own Sigma EF-530 DG ST Flashgun iTTL, Nikon Dedicated?

MODEL OVERVIEW
Sigma EF-530 DG ST Flashgun iTTL, Nikon Dedicated
Versatile and lightweight, the Sigma EF-530 DG ST Flashgun iTTL, Nikon Dedicated is designed specifically for use with Nikon cameras.

The versatile Sigma EF-530 DG ST iTTL, Nikon Dedicated Flashgun features a powerful Guide Number of 53 and is designed to work with the latest TTL auto exposure systems of all popular manufacturers' digital and film SLR cameras. It features TTL automatic flash exposure control for easy operation, while autozoom function automatically sets the optimum illumination angle in accordance with the lens' focal length in a range from 24mm to 105mm. When the built-in Wide Panel is used however, the flash can cover the angle of 17mm.