Yongnuo's Yn-14ex Macro Ring Flash Light Adaptor is designed for use with a Canon digital camera. This macro ring flash light adaptor supports a TTL flash and a large LCD display for easy checking on settings. The Yn-14ex comes with adaptors for filter sizes 52mm, 58mm, and 72mm. The recycling time for full output is a mere 3 seconds. The dimensions are H 13cm x L 23cm x W 16cm.