The EF-530 Super DG is Sigma's flagship TTL flash, and has been updated with improved coverage range and a stronger power output. It features a powerful Guide Number of 174'/53 m at 105mm, and covers a focal range from 24mm to 105mm.
The EF-530 Super DG is also fully compatible with the latest digital SLR cameras that use a pre-flash, and supports full i-TTL 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 i-TTL features are supported when used with applicable 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