Produced by traditional， expensive， and heavy powered studio ring flash units.
The most best tools for macro photography.
Portable and lightweight， has been designed to take advantage of a camera’s TTL metering capabilities.
Contains no electronics， no flash tubes and requires no cumbersome cables.
The light distribution is accomplished through a sophisticated system of internal prisms， reflectors and light-shapes designed to distribute and project the light evenly around the lens.
TTL functions will work normally when using this O-Flash.