Sigma EF-630 Multifunctional External Flash for Sigma

Offering greater output of light, the EF-630 features TTL exposure control, high-speed sync, wireless flash functions, auto-zoom and bounce-flash, amongst additional features that make it ideal for many types of photography.Intuitive user interface:dot matrix LCD screen for improved menu visibility, D-Pad and dial settings controls, and easy one-click disengage function improve ease of useModeling flash function:check for intense reflections and shadows before capturing the shotAF assist light:accurate auto-focus in low light conditionsAuto Power-off:flashgun automatically powers off after a period of non-operation to conserve battery lifeManual flash power level control:manually sets the flash power level from 1/1 to 1/128Compatible with most well-known digital SLR cameras, the EF-630 features auto TTL exposure control, as well as remote control operation through the TTL wireless flash function, where the camera lens calculates the correct exposure automatically for perfect lighting. For multi-flash setups, photographers can use the Slave Flash Function to trigger additional flashes. To achieve a softer look, photographers can bounce light off of a white wall, ceiling or reflector by tilting the EF-630's flash head upwards by as much as 90 Degree, or swiveling left or right by 180 Degree. For close-up shots, the flash head can also be titled down by 7 Degree.The new EF-630 Flash can be updated with the latest software from a workstation or laptop using the Sigma Optimization Pro software and Flash USB Dock (FD-11 sold separately).