Sigma EF-500 DG SUPER flash for SLRs

The EF-500 DG ST can be used with Sigma's and other manufactures' AF 35mm SLR cameras and Digital SLR cameras. It features TTL automatic flash exposure control for easy operation.
It has a maximum guide number of 50/m (165/ft) w/ISO100. Projection angle of the flashlight is set automatically to match the lens' focal length ranging from 28mm wide-angle to 105mm me-dium-telephoto. It incorporates a built-in diffuser that widens the angle of illumination to 17mm. The `gun enables full automatic flash photography by TTL automatic flash exposure control. In ad-dition, manual flash can be set to full and 1/16 output levels in 2 steps.
For bounce flash it can be tilted 90° upwards and 7° downward for close-ups. It can also be swiv-eled 180° to the left and 90° to the right. Covering focal length of the flashlight can be seen on the LED panel and the flash ready signal can be seen in the viewfinder. The EF-500 DG ST incorporates an auto power off system.
All models feature a new cosmetic finish and the Nikon version incorporates the unique iTTL exposure control (fully dedicated to the Nikon D-70 digital SLR).
Fittings: Sigma SA-STTL, Canon EO-STTL, Minolta MA-MADI, Nikon NA-ITTL and Pentax PA-PTTL