Hey I'd also be interested in a copy of the manual for the PM4. I have been using it but have no idea what the results actually mean in real world values.
I use it to set my VC filtering for B&W. I've compared my gels n noted the valuse so I can now set my head to any filter in just seconds.
It would be nice to know what the potential n values of the display of the meter actually represent.
Thanks Chan, she's working just fine BTW.