Click on each question to link down to the answers.

1. What types of electronic flash units does Sigma offer?
2. Can I have my Sigma flash, for Canon, updated to add the new ETTL II function for my new camera?

Answers

1. What types of electronic flash units does Sigma offer?
Two models: the EF530 DG Super and EF530 DG ST.
Both models are available in versions dedicated for Sigma, Canon, Minolta, Nikon and Pentax AF cameras and have a powerful Guide Number of 100/ft. for ISO 100 with coverage for 28mm wide-angle lenses, 165/ft. for ISO 100 at 105mm telephoto lenses. They provide most of the dedicated functions of comparable model flash units from the camera manufacturers themselves (e.g. automatic shutter speed synchronization, TTL automatic exposure control, manual exposure control, automatic power zoom function, etc.).

Some EF530 DG Super additional functions (e.g. rear-curtain synchronization, wireless TTL controlled flash, high speed synchronization, red eye reduction, etc.) are available for certain model cameras within a camera system. This is dependent on features the particular camera can support. Your camera’s owner manual or manufacturer can tell you what special flash functions your camera can utilize.

The EF530 DG ST provides the same high light output and dedicated automatic features, but without the extra creative functions of the EF500 DG Super, mentioned above. Both models feature motorized zoom head, covering from 28mm to 105mm lenses plus bounce and swivel function.
Back to top >>

2. Can I have my Sigma flash, for Canon, updated to add the new ETTL II function for my new camera?
No, it is not necessary practical to try to add this function to an existing Sigma EF500 DG Super or EF500 DG ST flash unit for Canon cameras. These flashes are already compatible with this function.
Back to top >>