Wein makes a little conversion unit that uses the Zn-air batts. (hearing aid type).
R/ Bob
Some information and sources:
http://www.photoutfitters.com/Battery.html
http://www.smu.edu/~rmonagha/bronbattery.html
http://www.freestylesalesco.com/73.html
http://www.criscam.com/cris2i.htm
"Wayman E. Simmang, Sr." wrote:
> I have a Gossen lunasix exposure meter and tried to use an alkaline
> replacement to see what would happen. The readings are too high. I have
> heard of a battery that was not alkaline or Mercury(since mercury batteries
> are not made anymore). Does anyone know of this battery? Thanks in advance
> for taking the time to answer. This meter is too nice to throw away.
> ........Wayman
>While in many areas Europe is "ahead" of us enviromentally - Mercury batteries
>isn't one of them. They are still used extensively and sold everywhere. The
>company VARTA makes them and can be easily found in just about any camera
>store. I use one in my Minox and pick up a couple when ever I "jump the
>pond". Next trip is in November if you haven't solved your problem by then,
>let me know. Just be responsible in how you dispose of your old ones.
>Brian
Yeah, be responsible about how you dispose of them. Send the dead
batteries to Brian, and he can throw them away in Europe!
:-)
-Paul
--
Articles on B&W photography, camera and equipment reviews, and photographs at:
http://www.asymptote.com/butzi
Brian Downey <down...@pilot.msu.edu> wrote in message
news:37AD1017...@pilot.msu.edu...
> While in many areas Europe is "ahead" of us enviromentally - Mercury
batteries
> isn't one of them. They are still used extensively and sold everywhere.
The
> company VARTA makes them and can be easily found in just about any camera
> store. I use one in my Minox and pick up a couple when ever I "jump the
> pond". Next trip is in November if you haven't solved your problem by
then,
> let me know. Just be responsible in how you dispose of your old ones.
> Brian
>
>Someone makes a zinc/air replacement. It works - has the correct voltage,
>etc. I know I've seen them in the Porters catalog, and I bought one at my
>local Mom/Pop camera store a year ago - I just don't remember the brand
>(it's in my father's Pentax Spotmatic, or I'd go look at it).
>
The problem with replacing mercury cells with other types is the
voltage curve of the battery. Mercury cells have very constant voltage
until they are just about depleted. Most other types of batteries have
voltage which drops as the cell becomes exhausted. Unless some means
is provided for regulating the voltage the calibration of the meter
will vary as the battery runs down. There are adaptor regulators which
keep the voltage of alkaline or other types of cells constant and at
the right voltage. They go in with the battery. I can no longer
remember the name of this thing but they have been discussed in the
past in both the large-format group and 35mm group. A search may find
them.
BTW there is a much better interface for searching the Deja.com
database at http://www.liszt.com
Click on the newsgroup list.
>Brian Downey <down...@pilot.msu.edu> wrote in message
>news:37AD1017...@pilot.msu.edu...
>> While in many areas Europe is "ahead" of us enviromentally - Mercury
>batteries
>> isn't one of them. They are still used extensively and sold everywhere.
>The
>> company VARTA makes them and can be easily found in just about any camera
>> store. I use one in my Minox and pick up a couple when ever I "jump the
>> pond". Next trip is in November if you haven't solved your problem by
>then,
>> let me know. Just be responsible in how you dispose of your old ones.
>> Brian
>>
>> "Wayman E. Simmang, Sr." wrote:
>>
>> > I have a Gossen lunasix exposure meter and tried to use an alkaline
>> > replacement to see what would happen. The readings are too high. I have
>> > heard of a battery that was not alkaline or Mercury(since mercury
>batteries
>> > are not made anymore). Does anyone know of this battery? Thanks in
>advance
>> > for taking the time to answer. This meter is too nice to throw away.
>> > ........Wayman
>>
>
>
---
Richard Knoppow
Los Angeles, Ca.
dick...@ix.netcom.com
> Someone makes a zinc/air replacement. It works - has the correct voltage,
> etc. I know I've seen them in the Porters catalog, and I bought one at my
> local Mom/Pop camera store a year ago - I just don't remember the brand
> (it's in my father's Pentax Spotmatic, or I'd go look at it).
>
I just put a Wein Cell MRB625 in my Yashica Mat 124G yesterday. Don't know how
it will perform.
Well, if the deviation remains constant over the whole range, then you
could just use a lower ISO value...
Alex
The problem with an alkaline battery as a replacement is that the voltage
changes with use - with a mercury cell, that is not the case.
There are zinc-air batteries (from Wein) that are designed to have the
same voltage and voltage stability as a mercury battery. I have heard that
they have a much shorter life.
I have also heard of adapters that take a silver (I think) battery and
regulate its voltage to that of a mercury cell. The adapter has the same
outside dimensions as the mercury battery it replaces. I think I have seen
these advertised in 'Shutterbug Ads'.
Ray
--
E. Ray Lemar ele...@home.com