The EF-500 Super DG is Sigma's flagship TTL flash , and has now been updated to also be fully compatible with Digital SLR cameras that use a pre-flash, and supports full Nikon i-TTL flash operation (where supported by camera). You will find features designed for the professional, at a much more attractive price than the comparably equipped manufacturer's flashes.
The perfect all-around flash for any Digital or 35mm autofocus SLR shooter.
Bounce & swivel head
Flash can be tilted 90° upwards and 7° downward for close-ups. Also can be swiveled 180° to the left and 90° to the right
AF Assist
Autofocus auxiliary lamp helps the camera to focus in low-light situations
Red-eye reduction function
LCD Display
Features an Illuminated LCD panel
Strobe Effect
The "multi pulse" features enable reduced power setting from 1/4 to 1/64 and the pulse frequency of the flash can be set from 1Hz to 100Hz
High-speed sync
High-speed sync & wireless TTL features are supported when used with applicable cameras
Modeling Light
Incorporates "modeling flash" mode to provide proper light distribution to check the shadow of the subject
Auto Power Off
Battery-saving mode shuts down power after 80 seconds