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 E-TTL II 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
LCD Display
Features an Illuminated LCD panel
Strobe Effect
The "multi pulse" features enable reduced power setting from 1/4 to 1/128 in 6 steps and the pulse frequency of the flash can be set from 1Hz to 199Hz
High-speed sync
High-speed sync & wireless E-TTL TTL features are supported when used with applicable cameras (wireless flash only supported by film cameras)
Slave Flash
Allows the flash to be triggered by the camera's built-in flash or another flash
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 90 seconds