It's always problematic to test TTL flash with no film in the camera. Since the sensor is measuring light reflected off the film, it's measuring what would seem to be a reduced amount of light reflecting off the black pressure plate instead.
I may be wrong but I do not recall the Pz-1p having OTF metering.... That's totally different from TTL
Now the LX, that's a horse of a different color.... :-)
Later, Gary
