The Weston Exposure Meter FAQ
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Category: Repairing
  1. I have an old Weston 2 which seems to have stopped working. How can I repair it or get it repaired?
  2. master v need repair serial no j0668 where can i send this?
  3. Hi, Please could let me know if you service Weston Master111. Could you let me know the cost & how quick could you get it back. Could you phone me on 07771 667050. Thanks Dave
  4. My father in law has a Weston Master II which apparently has stopped working. He would like to get this repaired. Is this feasible? Please let me know when you can. Thanks Tony Sassi
  5. The front "glass" of my meter has worked loose, but is not broken. What would be the best adhesive to use to reseat it please?
  6. I have a pair of weston meters, DC Volt and AC amps, from Pan American Airways tool crib. Thes are wooden cases, model 155, and model 45. Is someone collecting these. I am about to throw them out if I don't get something for them on E-BAy, I can't carry t
  7. I have a weston meter model 736. I think it needs a new photo elec cell. can it be repared? How much will it cost?
  8. Hello, We have a Weston Master IV, model 745, serial # AF878. Can this information tell me the approximate date of manufacture? Thanks!
  9. Could you please add the information to this web site that Megatron, the manufacturers of the Euro-Master II carry out an extensive service & calibration of repair to all Weston exposure meters?
  10. Gooday. Question: Using Weston meter in conjunction with cameras own meter ie. using a telephoto lense on a Pentax SLR whose meter is not working. Seeing the extra distance the light has to travell to reach the film plane,readings using the lens in front of the Weston reveal many diferent readings, would you use this method and take a reading at every F stop & shutter speed setting, for every lense in ons collection. Thanking you for your help Allain
  11. I'm looking for an invercone for a Weston V meter. Does anyone make good reproductions or does anyone know where I can buy one? Thanks!
  12. I have a Weston Master V in excellent condition except that there is a crack in the glass. I would very much like to make it purfect again by replacing the glass with one I have in a defective Weston V. How do I take them apart and do I need special tools? Thanks Dave
  13. Hi I have a mark one weston master exposure meter in well used leather case.Can you please advise me of its current value as i no longer need it and intend to sell it.Picture available if reqd. Many thanks Clive
  14. The battery in the model 348 needs to be replaced. I just found it in a tool box and knew it is a good unit so I want to restore it to use. it had a mercury 2.7 px14 by mallory (extinct). What do I use as replacement? Also, whow is it that I'm the one asking this? Hasn't anyone had this problem? Two Email addresses, please: the one above and sunshinenana@comcast.net
  15. Hi I have a Weston IV with a lazy cell- can I transfer the cell from a tatty Weston III into it without too much loss of accuracy? Thanks.
  16. I inherited a Weston Master II meter and would like to be able to use it. However, after being stored for a number of years, it does not respond to light levels, even direct sunlight. Needle is moving freely. Does it need to "recharge" in sunlight for a period of time, or is there another means to get it operational once again?
  17. I\'ve just purchased a Weston Master V from eBay that was described as excellent condition. All seems OK except that the stainless steel top is loose and so will lift about 2-3mm at the window end. How is the top normally secure to the base? Is there any way I can rescuer it?
  18. Is there someplace I can acquire a new Selenium cell for my Weston Master V?



  1. I have an old Weston 2 which seems to have stopped working. How can I repair it or get it repaired?
    Hmmm It's impossible to get inside a Weston 2 without the proper tool which is just about impossible to get hold of. A professional repair is prohibitively expensive. I'd get a new one via ebay - It'll be a lot cheaper!
    Category: Repairing
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  2. master v need repair serial no j0668 where can i send this?
    The most common question concerne repairs. The only repair facility I know of is run by John deVries from Holland. John charges 95 Euro to put your meter back into full working condition and fit for another 25 years of use. John knows his Westons!!. You can contact him on his excellent site www.westonmaster.com and go to ORDER.
    Category: Repairing
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  3. Hi, Please could let me know if you service Weston Master111. Could you let me know the cost & how quick could you get it back. Could you phone me on 07771 667050. Thanks Dave
    The most common question concerne repairs. The only repair facility I know of is run by John deVries from Holland. John charges 95 Euro to put your meter back into full working condition and fit for another 25 years of use. John knows his Westons!!. You can contact him on his excellent site www.westonmaster.com and go to ORDER.Servicing Westons is costly and you would probably do better to buy a new one. IIIs are Ok meters but a Weston IV or V or a Euromaster is likely to be more accurate and probably last longer as the cells on IIIs and earlier have often "gone lazy" by now.
    Category: Repairing
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  4. My father in law has a Weston Master II which apparently has stopped working. He would like to get this repaired. Is this feasible? Please let me know when you can. Thanks Tony Sassi
    The most common question concerns repairs. The only repair facility I know of is run by John deVries from Holland. John charges 95 Euro to put your meter back into full working condition and fit for another 25 years of use. John knows his Westons!!. You can contact him on his excellent site www.westonmaster.com and go to ORDER.Servicing Westons is costly and you would probably do better to buy a new one. IIs are great meters - better made than IIIs but a Weston IV or V or a Euromaster is likely to be more accurate and probably last longer as the cells on IIs have often \"gone lazy\" by now. Or in the UK try http://ian-partridge.com/lightm.html
    Category: Repairing
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  5. The front "glass" of my meter has worked loose, but is not broken. What would be the best adhesive to use to reseat it please?
    If only it was easy to open up the meter but it needs special tools! I'd avoid super glue and just go for a simple glue like PVA. It's pretty innocuous and if you smear it fairly liberally round the edge of the glass, then move the glass round and round till it seeps underneath. Carefully remove the surplus from the glass before it sets but you'll be able to remove any dried surplus easily afterwards. I think this is the safest approach - a least to try initially. The other approach is a very small bit of clear silicone sealant - a better seal but more difficult to remove surplus. Do let us know how you get on.
    Category: Repairing
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  6. I have a pair of weston meters, DC Volt and AC amps, from Pan American Airways tool crib. Thes are wooden cases, model 155, and model 45. Is someone collecting these. I am about to throw them out if I don't get something for them on E-BAy, I can't carry t
    As you can probably see, this site is really about Weston light meters - but of course there is always a chance that enthusiasts of other types of meter will visit. Best of luck anyway.
    Category: Repairing
    567 visitor(s) thought this was helpful. Do you? Yes, it was helpful No, it was not helpful


  7. I have a weston meter model 736. I think it needs a new photo elec cell. can it be repared? How much will it cost?
    Unfortunately the cost of repair is quite steep and certainly more than the meter is worth or a newer on will cost. The most common question concerns repairs. The only repair facility I know of is run by John deVries from Holland. John charges 95 Euro to put your meter back into full working condition and fit for another 25 years of use. John knows his Westons!!. You can contact him on his excellent site www.westonmaster.com and go to ORDER.
    Category: Repairing
    506 visitor(s) thought this was helpful. Do you? Yes, it was helpful No, it was not helpful


  8. Hello, We have a Weston Master IV, model 745, serial # AF878. Can this information tell me the approximate date of manufacture? Thanks!
    Early 1960's - they started manufacture in 1960. I bought mine new - it makes me feel old - I am old!!
    Category: Repairing
    514 visitor(s) thought this was helpful. Do you? Yes, it was helpful No, it was not helpful


  9. Could you please add the information to this web site that Megatron, the manufacturers of the Euro-Master II carry out an extensive service & calibration of repair to all Weston exposure meters?
    Certainly will.
    Category: Repairing
    511 visitor(s) thought this was helpful. Do you? Yes, it was helpful No, it was not helpful


  10. Gooday. Question: Using Weston meter in conjunction with cameras own meter ie. using a telephoto lense on a Pentax SLR whose meter is not working. Seeing the extra distance the light has to travell to reach the film plane,readings using the lens in front of the Weston reveal many diferent readings, would you use this method and take a reading at every F stop & shutter speed setting, for every lense in ons collection. Thanking you for your help Allain
    Interesting idea Allain, but it won't work! Your lens will not output a big enough area of light to fill the cell of the Weston. If the subject - even a long way away - is lit the same as nearby, just take a normal reading of a similarly lit nearby scene. Or, use the incident measurement method with the invercone.
    Category: Repairing
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  11. I'm looking for an invercone for a Weston V meter. Does anyone make good reproductions or does anyone know where I can buy one? Thanks!
    Worth trying ebay - you see them there from time to time or if you are rich, Megatron (see under Euromaster 2) will possibly have new ones.
    Category: Repairing
    516 visitor(s) thought this was helpful. Do you? Yes, it was helpful No, it was not helpful


  12. I have a Weston Master V in excellent condition except that there is a crack in the glass. I would very much like to make it purfect again by replacing the glass with one I have in a defective Weston V. How do I take them apart and do I need special tools? Thanks Dave
    Unfortunately you need a special tool to open-up the meter and this is not generally available. You could contact Megatron (details under Weston Euromaster II) and get a quote for a repair. Trying to open up the meter without the proper tools can very easily mess-up the meter. Worth giving Megatron at least a call. Or, new on on ebay - there are usually quite a few and it's likely to be cheaper than a repair.
    Category: Repairing
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  13. Hi I have a mark one weston master exposure meter in well used leather case.Can you please advise me of its current value as i no longer need it and intend to sell it.Picture available if reqd. Many thanks Clive
    Clive, it's very difficult to say. On ebay there are Weston 1s for a few dollars. That's the joy of buying Westons - you can get them for a few bucks. You won't make much selling - perhaps 20 dollars if you are very lucky - perhaps 10.
    Category: Repairing
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  14. The battery in the model 348 needs to be replaced. I just found it in a tool box and knew it is a good unit so I want to restore it to use. it had a mercury 2.7 px14 by mallory (extinct). What do I use as replacement? Also, whow is it that I'm the one asking this? Hasn't anyone had this problem? Two Email addresses, please: the one above and sunshinenana@comcast.net
    Hi Dennis. Look at http://answers.google.com/answers/threadview?id=196194 You may find that the different voltage will give inaccurate readings but you may be able to adjust for this. I do hope this helps - you could also look on ebay - there are some 3v alkaline cells there too.
    Category: Repairing
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  15. Hi I have a Weston IV with a lazy cell- can I transfer the cell from a tatty Weston III into it without too much loss of accuracy? Thanks.
    The problem is getting "into" the meter. There is quite a bit about that on the site, but essentially you need a special tool - unless you can make or bodge one.
    Category: Repairing
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  16. I inherited a Weston Master II meter and would like to be able to use it. However, after being stored for a number of years, it does not respond to light levels, even direct sunlight. Needle is moving freely. Does it need to "recharge" in sunlight for a period of time, or is there another means to get it operational once again?
    This does occasionally happen. The cell develops a fault and fails. I've not heard of a solution but you could try leaving it in sunlight - it will not do any harm. Sadly, I think you may have to face the fact that the cell is dead.
    Category: Repairing
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  17. I\'ve just purchased a Weston Master V from eBay that was described as excellent condition. All seems OK except that the stainless steel top is loose and so will lift about 2-3mm at the window end. How is the top normally secure to the base? Is there any way I can rescuer it?
    You should be able to remove the slightly knurled nut in the centre of the main dial - just use your fingernails to grip it. Lift off the dial unit making sure you know where it is pointing so you can replace it correctly. There are two bolts underneath - off you go from there!
    Category: Repairing
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  18. Is there someplace I can acquire a new Selenium cell for my Weston Master V?
    Take a look at our manuals and Repairs page.
    Category: Repairing
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