[mcgregni]

Ana, I take it from your previous post that you would be using the flash on the camera plus hand held by yourself near to the camera, then I would suggest a Pentax AF-540FGZII plus a "P-TTL Cable" or Extension Cord with adaptors. The Pentax versions are detailed in the Supplement to my "Pentax Flash Guide", downloadable from the link below my signature. There is also a third party cable called the"Vello" , which users report successful working with.