Originally posted by ckschempp So I am brand new to DSLRs and have just ordered my first: K3, with a sigma 17-35 mm f2.8 and a Rokinon 85mm f1.4 and the Metz 52. I still am having trouble understanding the jargon, so I need to know if I have to purchase any other accessories to get the flash to work off camera. Does the k3 have wireless communication automatically, or do I need to buy a remote or a wireless card? I apologize if this has been addressed, but I can't quite understand Pentaxian, yet
You can wirelessly trigger the flash using the pop up flash on the K-3. It retains P-ttl data so you can have it expose automatically. But the optical slave on the flash won't see so good in bright daylight, so its best to only use the pop up flash to trigger if you are indoors. Read the manual that came with the flash to figure out how to set it to slave mode and the K-3 manual for wireless triggering.
Another option is radio trigger, which work great and are usually very reliable. They also don't require line of sight to trigger the flash. But there aren't many option, if any, that retain P-ttl data. So you will almost always have to use the flash in manual mode and set the power yourself.