Dave, You are basically correct if the popup flash is stronger than the slave and ambient isn't too strong. The problem is, that the reason to move the flash off camera is to make the main light not be direct. In your proposed approach, the popup becomes the main and the AF360FGZ becomes the fill. The desired lighting effect is probably not really what you are looking for. You either need something to control TTL on all flashes, including ratios or run all the lights manually and flash meter for correct exposure.
--- Bruce Saturday, October 25, 2003, 11:02:32 AM, you wrote: DM> I also am very interested in this use of slave flash. I would have expected DM> the TTL functions to operate normally on the camera for not only the onboard DM> or external mounted flash but also for the slave flash. If you set the DM> slave for less then you expect to need 1/16 etc, then the on camera flash DM> would make up the difference wouldn't it? It would read the total provided DM> light from both flashes via TTL and provide the necessary amount on the on DM> camera flash to provide correct exposure. DM> I'm not saying I know this to be true, but rather pose this as a question. DM> Dave >> No TTL that way. You must manually set flash output and probably >> meter manually. Also need to take into account the popup flash on the >> MZ-5n. >> >> If you want off camera flash and TTL, you are going to need cords and >> connectors from Pentax.