Dumb question time. I just took delivery of a used Pentax spot meter - analog. Excellent shape. I already have one, and the price was right to have a second one as backup.
A few years ago my first spot meter took a bath in a river, but it was rebuilt and re-calibrated by Pentax, and it's never given me any trouble since. Comparing the two meters side by side, and they appear to be identical models from anything i can see, the "new" meter is exactly one full stop faster than my old meter. So easy enough to adjust for, but I was wondering about changing the calibration myself.
On the front of these analog meters there is a slotted screw you use for adjustments, but I've never touched mine as I've never had too. This is the "zero" adjust. On my "old" meter, the one calibrated by the factory rebuild, the needle stops exactly on the "19" mark. On my "new" meter, the needle stops exactly in the middle of the black dot just past the "19" on the scope.
So while I could adjust the new meter to match my old one, but I am wondering if I wouldn't bugger things up and maybe best to leave things alone, just label the new meter so I know the difference.
Other dumb question -is the "19" the proper mark, or the black dot.
thanks
joe
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