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11-01-2010, 06:38 PM   #1
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Anyone calibrate a hand-held meter?

I have a Quantum Calculight XP which is consistently reading a full stop low. At ISO 400, for example, my other meter and various cameras will all give a reading of, say, 500th at f4 but the Quantum will read 500th at f2.8. This happens at all ISO settings. I've tried new batteries and yes I could make a mental compensation, but you know how it is in the heat of the moment - easy to forget or compensate in the wrong direction.
Does anyone know how to calibrate one of these?


11-01-2010, 07:21 PM   #2
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Quantum have an online manuals section, however you have to register to access them. I would recommend that you should start there.

their page can be accessed here

are you using the meter as a flash or ambient meter?
11-02-2010, 10:00 AM   #3

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I'd expect a handheld to give a different reading then the camera under many conditions. So you're saying if you hold the meter up to, say, a white wall and did the same with the camera and other meters they differ by one stop?
11-02-2010, 02:08 PM   #4
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I've calibrated an old GE II meter - it is a simple screw driver job. Are you asking about where on your meter might a calibration control be?

11-06-2010, 06:09 AM   #5
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Original Poster
Thanks for the responses, gents. Digitalis, I'm using the Quantum as an ambient meter. And I already have the manual but it doesn't tell me how to calibrate the beast.
Tuco, yes, I've done exactly that and the other meters, including another hand-held, all differ by one stop consistently.
Nesster, yes I'd like to know where the adjustment screw(s) is/are and how to actually do the calibration. I've taken the cover off and inside, sitting on the circuit board, are four small blue rectangular objects, each with a screw sticking out, which I imagine must be the adjusters. I'm nervous about twiddling with them in case I totally wreck the thing.
Any further advice would be much appreciated.


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