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lightmeter airport security


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#1 Felix Wiedemann

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Posted 20 April 2010 - 02:13 PM

Sorry for this rather boring question. I am going to shoot abroad, so for the first time I am taking my light meter on a flight. I just wanted to double check that the X-Raying or whatever they do to the luggage at security checks doesn't mess up the sensor of the lightmeter ? Does it need recalibrating afterwards ?

I have the Sekonik 758 Cine and I was planning to take the meter in my handluggage.

To make this thread slightly more interesting : Does anyone know how a lightmeter actually works in terms of physics ?

Thank you very much !

Edited by Felix Wiedemann, 20 April 2010 - 02:15 PM.

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#2 Chris Keth

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Posted 20 April 2010 - 02:42 PM

Sorry for this rather boring question. I am going to shoot abroad, so for the first time I am taking my light meter on a flight. I just wanted to double check that the X-Raying or whatever they do to the luggage at security checks doesn't mess up the sensor of the lightmeter ? Does it need recalibrating afterwards ?

I have the Sekonik 758 Cine and I was planning to take the meter in my handluggage.

To make this thread slightly more interesting : Does anyone know how a lightmeter actually works in terms of physics ?

Thank you very much !


It's perfectly safe. I've travelled all over with my meter with no problems at all.

Physically, the jist of a lightmeter is a sensor very much like a little solar panel. It generates current proportional to the amount of light hitting it.
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#3 John Sprung

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Posted 20 April 2010 - 03:03 PM

That particular Sekonic meter uses two photodiodes in photoconductive rather than photovoltaic mode. They regulate rather than generate the flow of electrons, which is why it needs a battery. Airport X-rays should be no problem. With a digital display, it won't need re-calibration after traveling, like the old mechanical meters did. Vibration and shock was the issue back then.




-- J.S.
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#4 K Borowski

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Posted 21 April 2010 - 11:59 AM

Only things you have to worry about getting X-rays are film (unprocessed), and sometimes certain tapes or hard-drives (has more to do with magnets than the actual X-ray source, I think).


Light meter will come out perfectly fine.
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