Title: Maybe mine is defective, but these are useless
Review: I purchased this falsh to serve specifically as a slave flash for fill-ins and effects. Unfortunately the light sensor that senses the main flash does not work. It fired MAYBE 2% of the time. The only way I could get this to fire consistently was to aim it directly at the camera's flash, which obviously isn't helpful. I would not recomend this flash to anyone. Sunpac, you got it wrong...
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