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Light Meters

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    21 Feb 2012 - 1:07 PM

    Is it possible for analogue Light Meters, Leningrad4/Weston Master II for example, to lose their light measuring capability? Either ambient or incident light. In other words to provide defective readings. I have one of each and they sometimes seem to contradict one another. And often the camera (D300) meter too. I use one or the other of them with the F5

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    mikehit  56457 forum posts United Kingdom9 Constructive Critique Points
    21 Feb 2012 - 1:44 PM

    How different are the readings?

    BillyGoatGruff e2 Member 7191 forum postsBillyGoatGruff vcard England199 Constructive Critique Points
    21 Feb 2012 - 2:03 PM

    I had two Weston V's tested three years ago by a camera repairman guru and one was found to be about half a stop under optimum but still usable and the other had lost its calibration completely and was useless and unrepairable.
    Both are about 35+ years old, so it would seem that they can (and do) lose their sensitivity over time. I would guess that the light sensitive element just wears out and/or loses its ability to generate a current.
    Or, perhaps, the physical, moving parts lose their accuracy or fail due to material fatigue.
    As your D300 is significantly more recent, chances are that it'll be more accurate.

    21 Feb 2012 - 4:09 PM

    Thank you. I must admit that I bought both S/H off eBay some time ago & payed relatively little for them.
    I shall look at a quality digital meter instead.
    Your advice is much appreciated Smile

    Gaucho e2 Member 122260 forum postsGaucho vcard United Kingdom2 Constructive Critique Points
    21 Feb 2012 - 8:44 PM

    I believe you can calibrate the Weston Master via a little hole on the back. You might test it against the D300 and re-align the needle.

    Snapper  93750 forum posts United States Minor Outlying Islands3 Constructive Critique Points
    21 Feb 2012 - 8:59 PM

    The selenium cell goes on the Weston and they won't give any meaningful reading. Repair is still an option though, and then you'll have a battery-free meter that will last for years. Cell replacement seems to cost about 70 according to this site that Google found.

    21 Feb 2012 - 11:41 PM

    Malcolm & Peter. Thank you both for the info provided. Much appreciated.
    Some research/testing to do tomorrow Smile

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