awesome despite a lack of power: small, lightweight, it fits everywhere and is not an additional burden that makes the SLR + heavy, bulky and much + - handy, it's still in + aesthetics. it is almost 2 times + powerful than the built-in flash, which is not huge, but mostly it is FAST, it enables faster recharge and take bursts WITH flash! small flaw: no low battery indicator to where we are. ° f it with LR3 batteries. the same flash, barely big + with a guide number of 30, it would be the paradise amateur photographer.