Need help on Inon Z220s on C-5050 with PT015

I'm setting up my wife's camera for a trip. Everything seems to work. I'm using a pair of optical synch cables Herb Ko sold me. I put a piece of black film over the camera flash to allow only the IR to come through the window. Synch on both Inon Z220 strobes works fine. Here's the issue: I set it all up in the housing on a tripod. I test-fired it at 1/60 f/8 at a target three feet away in manual camera mode, and started adjusting the strobe power levels for exposure. I'm using optical synch mode. Surprise! Full power yields a flash, but no exposure value. If I take it down to -1 or -2 power setting, I get a decent exposure. Taking it down to lower power levels yields decreasing exposures, but not as low as full power. What the hay is going on? Am I going nuts? Yes!

Set your camera to slave mode-

That DID it! Thank you very much! I fretted over that one for a couple hours.

No problem, glad to help!