[photomad_2007]

Originally Posted by dougsmit

I regret that this will require an answer from a Pentax user. On Canon, you must have two flashes to use wireless. One is on the Camera and set as a sender which shows a display on the flash that includes a large lightning bolt with a line connecting it to a smaller bolt. This is set by pushing the Mode button repeatedly to cycle between the various modes. The receiving flash (again for Canon) is set to SL (for Slave) mode and C1 (matching the default of the sending unit). I have no idea if Pentax matches this but I am sure that, like Canon, all the settings must be exact or it will not work. If the receiving flash is not the same model as the sender, be sure to set it according to the instructions for it and not from the instructions from the sending flash.

I hope someone working in Pentax replies with better help. The Sigmas are good flashes but they make different models for every brand and exact operation will vary for each. A problem with having so many features is that the instruction book (in so many languages other than Japanese) can be less than clear.

Thank you Dougsmit.
Will try to send a message to Pentax now.
Kris