The Sony HVL-F20M External Flash is an on-camera flash that supports the use of the Sony Alpha TTL system and is compatible with Sony's Multi Interface shoe. When compared to the built-in pop-up flash of many cameras, this flash helps to extend the effective flash working distance by providing a guide number of 65.6' / 20m at ISO 100. Additionally, this flash can serve as a wireless controller for triggering an off-camera flash.

See recent price change history for the Sony HVL-F20M.