[pfreivald]

Thanks, Greg. We've been using everything you've mentioned with reasonable success, and were hoping for a more elegant solution than the eWatt-to-the-face-and-Hold calibration method. (More specifically, what we wanted to do was vary the exposure time with range so that we could calibrate with a couple of clicks instead of using a light to the face.)

Ah, well. Not everything works the way we want it to all the time. Thanks again!