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martinsmith99



Level 1

Joined: 31 Aug 2008
Posts: 87
Location: S Glos, UK

PostPosted: Mon Sep 15, 2008 8:24 pm    Post subject: 625 Battery Reply with quote

No doubt this has been asked many times......

I have today aquired a Praktica Super TL. This is my 1st film SLR and was kindly donated to me. All seems to work fine but it has no battery, so no meter.

I understand that the original batteries are no longer available, but are there any reasonably priced alternatives. I don't want the zinc/air battery option as the camera will only get occasional use. What about adapters or some kind of mod?

Thanks
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Cameras - Canon 40D, Pentax Spotmatic F, Praktica MTL5 & Praktica TL3
MF lenses - Olympus Zuiko 28mm F2.8, CZ Flektogon MC 35mm F2.4, SMC Takumar 55mm F1.8, Tamron SP 90mm F2.5 macro, CZJ MC Sonnar 135mm F3.5, Tair PhS 300mm F4.5, Osawa 400mm F5.6
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maddog10



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Joined: 08 Apr 2008
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Location: Maryland, USA

PostPosted: Mon Sep 15, 2008 9:57 pm    Post subject: Reply with quote

You can get an adapter from www.criscam.com, they are not exactly cheap.
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Michael Hill

DSLR: Nikon - D3, D80, D40 Canon- 5D
Film: Nikon - F5, F2, F, EM, FG, FE, Nikkorex Contax - G2 Mamiya - M645 Olympus - OM1 Praktika - LTL PLC3 Pentax - Spotmatic SP Yashica Electro 35 GSN Zenit - B
Nikon Mount Lens: Nikkor - 2.8/20 2.8/24 2/28 2.8/28 3.5/28 2/35 2.8/35 1.4/50 1.8/50 2/50 1.8/85 2/85 2.5/105 2.8/135 3.5/135 2.8/180 4/200 4.5/300 Micro 2.8/55 Micro 4/200 Zoom 3.5/36-72 3.5/43-86 4/70-210 Sigma - Zoom 2.8-4/35-70 Soligor - 3.5-4.5/28-80 4.5/80-200 5.6/95-310 Tamron - SP 2.8-3.8/35-80 SP 3.5/70-210 3.8-4/80-210 Vivitar - 3.8/19 2.8/28 (Series 1) 3.5-4.5/19-35 (Kiron) 3.5/70-210 Zenitar - 2.8/16
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Attila



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Joined: 24 Feb 2007
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PostPosted: Mon Sep 15, 2008 10:49 pm    Post subject: Reply with quote

I calculated already from a price of adapter I can buy air-zink batteries for 5 years at least.
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Prometheus



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PostPosted: Tue Sep 16, 2008 7:14 am    Post subject: Reply with quote

I buy my PX625's from a swedish officestore for about 2€, they work well in the Yashicas anyway and seems to work good in the Gossen lightmeter also. Check your office store, I think this type of battery was used in calculators or something like that so they sell replacement batteries for offices.

My Praktica uses PX28, that one I haven't found here yet though. I know I can buy them from international stores on the net but I havn't come around to it yet.
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lahnet



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Joined: 10 Apr 2007
Posts: 638
Location: Denmark

PostPosted: Tue Sep 16, 2008 8:31 am    Post subject: Reply with quote

Prometheus wrote:
I buy my PX625's from a swedish officestore for about 2€, they work well in the Yashicas anyway and seems to work good in the Gossen lightmeter also. Check your office store, I think this type of battery was used in calculators or something like that so they sell replacement batteries for offices.

My Praktica uses PX28, that one I haven't found here yet though. I know I can buy them from international stores on the net but I havn't come around to it yet.


Interesting.. The ones you buy are they 1,35 or 1,50 volts. If 1,35 please post a link.
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Prometheus



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PostPosted: Tue Sep 16, 2008 8:47 am    Post subject: Reply with quote

lahnet wrote:
Interesting.. The ones you buy are they 1,35 or 1,50 volts. If 1,35 please post a link.


Oops, no they are 1.5 volts... so I guess it depends on how the extra voltage is handled.
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Attila



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PostPosted: Tue Sep 16, 2008 10:46 am    Post subject: Reply with quote

Gössen lighmeter cheating a bit with 1.5 volt, but with negative film this is acceptable.
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----------------------------------------------------------------------------------------------------
Carl Zeiss Jena:Flektogon 2.8/20mm,4/25mm,2.4/35,2.8/65mm,4.5/4cm Tessar, 8/500mm Fernobjektiv
Pancolar 1.4/55mm,1.8/50mm,1.8/80mm,Tessar 2.8/50mm,Biotar 2/58mm,1.5/75mm,1.5/7,5cm
Carl Zeiss: Sonnar 2.8/135,2.8/180mm,Tessar 4/135mm
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Pentax: Pentax 1.2/50mm,1.8/85mm,4/200mm
Helios: Helios-40 1.5/8,5cm,Helios-44-1 2/58mm,Helios-44-2 2/58mm
Olympus OM: 3.5/18mm,3.5/21mm,1.4/50mm,3.5/55mm macro,2.8/135mm,2/90mm macro,35-70mm,60-250mm
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Laurence



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PostPosted: Tue Sep 16, 2008 3:50 pm    Post subject: Reply with quote

Zinc-Air batteries are easily preserved by re-covering the air holes. This adds many months to the life of the battery.
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Cameras in Use: Yashica Mat 124 w/ Yashinon 80/3.5, Revueflex 3003 w/ M42 lenses, Yashica Electro 35 w/ Yashinon 1.7, Voigtlander Bessa R w/ APO Lanthar 90/3.5, Contaflex 126 w/ Zeiss Pantar, Tessar, Sonnar, and Distagon
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LucisPictor



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PostPosted: Tue Sep 16, 2008 4:24 pm    Post subject: Reply with quote

Laurence wrote:
Zinc-Air batteries are easily preserved by re-covering the air holes. This adds many months to the life of the battery.

That's an excellent hint!
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rick_oleson



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Joined: 26 Feb 2007
Posts: 232
Location: Lexington Kentucky USA

PostPosted: Wed Sep 17, 2008 10:30 am    Post subject: Reply with quote

Prometheus wrote:
lahnet wrote:
Interesting.. The ones you buy are they 1,35 or 1,50 volts. If 1,35 please post a link.


Oops, no they are 1.5 volts... so I guess it depends on how the extra voltage is handled.


Are they silver cells or alkaline? I just saw some mention of a silver 625 cell the other day but I've never seen one myself.... alkaline cells are unstable in voltage, in some cameras they will give a good exposure one day and a bad one (in either direction) on another day. As you say, it depends on the meter circuit.
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Prometheus



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Joined: 27 Feb 2008
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Location: Garphyttan, Sweden

PostPosted: Wed Sep 17, 2008 10:50 am    Post subject: Reply with quote

rick_oleson wrote:
Are they silver cells or alkaline? I just saw some mention of a silver 625 cell the other day but I've never seen one myself.... alkaline cells are unstable in voltage, in some cameras they will give a good exposure one day and a bad one (in either direction) on another day. As you say, it depends on the meter circuit.


Alkaline, but they worked good so far...
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Screamin Scott



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Joined: 13 Oct 2007
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Location: Dallas, Georgia USA

PostPosted: Wed Sep 17, 2008 1:19 pm    Post subject: Reply with quote

See this thread which addressed this issue for my take...

http://forum.mflenses.com/gossen-lunasix-3-exposure-meter-battery-replacement-t10388,highlight,625+battery.html
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Prometheus



Level 3

Joined: 27 Feb 2008
Posts: 517
Location: Garphyttan, Sweden

PostPosted: Wed Sep 17, 2008 1:42 pm    Post subject: Reply with quote

Screamin Scott wrote:
See this thread which addressed this issue for my take...

http://forum.mflenses.com/gossen-lunasix-3-exposure-meter-battery-replacement-t10388,highlight,625+battery.html


Aha, but then this ones (zink air, za675) could work? They are easier to find so that would be great.
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Screamin Scott



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PostPosted: Wed Sep 17, 2008 2:14 pm    Post subject: Reply with quote

Mattias,
I use the #675 hearing aid air cells in my older equipment. I have the outer "shell" of a couple of alkaline 625's that I use to make them fit correctly. It's just like the adapter mentioned earlier ( http://www.cris-store.com/servlet/the-5/MR9-MR-dsh-9-Mercury-Battery/Detail) but without the voltage reducing diode. Since the #675 hearing aid air cells are the closest to the old mercury cells, the diode isn't needed.
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Nikkor AF //50/1.8,//Nikkor MF//50/2ai,50/1.8ais 50/1.4ai,24/2.8ais,28/2.8ai,28/3.5ai,55microAis/2.8,105/2.5ai,200/4ai,300/4.5ai35-135/3.5Ais
Kiron /Kino madelenses//70-210/4ai,28-105/3.2ai,30-80/3.5ai,Viv 28/2ai,35-85/2.8aiVivS1,105/2.8AisDine,24-48/3.8ai VivS1,50-150/3.8aiViv,28-85/2.8aiViv,100/2.8Nai Viv,70-210/3.5Nai Viv,28/2.5ai VivKomine made Viv//24/2Ais,135/2.8aiCF,28-50/3.5ai,28-90/2.8ai Viv S1,80-200/4.5aiCosina made Viv 19/3.8 Ais...Also Sigma 24/2.8 Ais Tokina made24/2.8ai VivAF Sigma 21-35/3.5,& other lenses
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Prometheus



Level 3

Joined: 27 Feb 2008
Posts: 517
Location: Garphyttan, Sweden

PostPosted: Wed Sep 17, 2008 2:27 pm    Post subject: Reply with quote

Screamin Scott wrote:
Mattias,
I use the #675 hearing aid air cells in my older equipment. I have the outer "shell" of a couple of alkaline 625's that I use to make them fit correctly. It's just like the adapter mentioned earlier ( http://www.cris-store.com/servlet/the-5/MR9-MR-dsh-9-Mercury-Battery/Detail) but without the voltage reducing diode. Since the #675 hearing aid air cells are the closest to the old mercury cells, the diode isn't needed.


Great, thanks for the tip Smile
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