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[OM] Re: Selenium light meters (Was: OM 2N vs OM4T(i) - Relative reliabi

Subject: [OM] Re: Selenium light meters (Was: OM 2N vs OM4T(i) - Relative reliability/repairability)
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Sun, 06 Apr 2008 21:38:38 -0400
You neglected to click on the link.  Megatron *is* the manufacturer. 
They produce both standard and custom size selenium cells.

Chuck Norcutt

Tim Hughes wrote:
> Interesting that you think they have selenium cells still? 
> I do not know of any vendors who still make them. 
> You could substitute silicon if you had something the right size (or cut a 
> larger cell with a
> diamond blade saw) and then recalibrate, but the spectral sensitivity of 
> Silicon is such that it
> has high sensitivity in the infra-red, so they would need to put a sprectral 
> correction filter
> (infrared and light green) to get the correct spectral response.
> Tim Hughes
> 
> 
> --- Robert McFetridge <rmcfet@xxxxxxxxxx> wrote:
> 
>> I have a couple of Weston IVs and both work although there is almost  
>> a stop of difference between them now. Yes indeed they are repairable  
>> but it may not be worth the cost. There is an outfit in California  
>> that can do it that I know of and I will try and find their address a  
>> bit later and post it unless someone else has it readily. As well  
>> there is a company in the UK, < http://www.megatron.co.uk/ > that  
>> sells the selenium cells and can also do repairs.
>> Bob
>> On 6-Apr-08, at 9:49 AM, John Hudson wrote:
>>
>>> I have a Weston Master V, model S461.5, meter. It is totally dead.
>>>
>>> Are these meters repairable?
>>>
>>> If so, does anyone know who could do the necessary service and  
>>> repair work?
>>>
>>>  jh
>>>
>>>
>>>
>>> ----- Original Message -----
>>> From: "Martyn Smoothy" <photo@xxxxxxxxxxxxxxx>
>>> To: <olympus@xxxxxxxxxx>
>>> Sent: Friday, April 04, 2008 6:29 PM
>>> Subject: [OM] Re: Selenium light meters (Was: OM 2N vs OM4T(i) -  
>>> Relative
>>> reliability/repairability)
>>>
>>>
>>>> Still have a Weston Euro Master which is over 20 years old & in  
>>>> working
>>>> order, regularly use it with my Mamiya RB67.
>>>> It will come in useful when the meter in the OM-3 finally packs up.
>>>>
>>>> Martyn
>>>>
>>>>
>>>>
>>>> Leandro DUTRA wrote:
>>>>> 2008/4/4, John Hermanson <omtech1@xxxxxxxxxxx>:
>>>>>
>>>>>>  I recently stumbled upon my and my wifes old Gossen Pilot selenium
>>>>>>  meters, and it made me feel good that they both work AND are both
>>>>>>  accurate. My sample goes back to the 60's.
>>>>>>
>>>>> So is that a good buy?  That should be good for the environment.
>>>>>
>>>>> Or is there some must-have in newer, battery-powered meters?
>>>>>
>>>>> Sorry for the stupid questions, I am just trying to figure it out.
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> 
> 
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