content: Being an old-time fan of bounce flashing, this allows you to do that with almost any digicam. I've used it with a Canon S3 and A620 with excellent results. I can lower the main flash output and use it to trigger the external. It's really versatile in the hand-held mode, allowing me to position it where I want at most any angle. When used mounted with the full-strength onboard flash, it can be truly blinding to those on the other side.The only "con" is the use of an odd-sized lithium battery. Even AA lithium would have been much more economical.