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Time and Weston lightmeters

 
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pv17vv



Joined: 22 Dec 2001
Posts: 255
Location: The Ardennes, Belgium

PostPosted: Fri Apr 18, 2008 4:37 pm    Post subject: Time and Weston lightmeters Reply with quote

How does time usually affect the sensivity of antique Weston lightmeters ? Low/high/erratic ?
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brian d



Joined: 15 Jan 2008
Posts: 44
Location: indiana

PostPosted: Fri Apr 18, 2008 5:34 pm    Post subject: Reply with quote

I have 3 of them 2 are very accurate 1 reads way low.
whenever I get a "new" old meter I compare it to a trusted newer meter
under various conditions to determin if it can be used or not.
Brian
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Les



Joined: 09 May 2001
Posts: 2682
Location: Detroit, MI

PostPosted: Fri Apr 18, 2008 8:39 pm    Post subject: Reply with quote

The simple straight forward answer is YES. In theory they ALL should degrade by a certain percentage, but theory and reality are... ahem, relative.

Les
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Dan Fromm



Joined: 14 May 2001
Posts: 1887
Location: New Jersey

PostPosted: Fri Apr 18, 2008 10:58 pm    Post subject: Reply with quote

Some years ago I got a Master V. It worked but clearly had linearity problems. I sent it to Quality Light Metric in, IIRC, North Hollywood. George told me that the galvanometer needed a new spring and that there were other mechanical problems. The cell was fine.

I've never ever got a used light meter that was accurate across its range. Each of the three I sent for service (the Master V, a Lunasix II and a Lunasix III) came back working properly.
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