Utilizing both a shoe-mounted flash and a lens-mounted ring flash attachment, the Bower SFD52C Dual Intelligent Speedlight is a versatile lighting system for both standard and macro flash photography for Canon cameras with E-TTL / E-TTL II metering. The standard unit features a guide number of 99' at ISO 100 and 50mm along with a full-frame zoom range of 28-85mm. The macro flash has a guide number of 46' at ISO 100 along with coverage for 50mm lenses.
Bounce flash is possible with the ability to tilt upwards 90° and rotate 330°. Also, it runs on 4 AA batteries which provide a recycle time of 0.5-7 seconds. And, it has 1st and 2nd curtain sync modes. The macro photography ring light attaches to 58 and 67mm diameter lenses with included adapter rings. The ring light can be detached from the main flash unit when not in use.