Suitable PX-13 / PX625 for Rollei 35

[E. von Hoegh]

Hello. Been wanting to break out my little Rollei 35, but I can't find the battery as it's Mercury. Anyone know of a suitable replacement that wont affect the meter, or if it does, how to compensate?

I've been using hearing aid zinc air cells in my Nikons and my meters. I made my own adapters out of nylon stock on a lathe. Also, I block off three of the four airholes. This gives a cell life of 9 months or more - I don't really know how long, the cell in my Nikkormat was put in last April 1.

For your Rollei, you may be able to find an O-ring at your local hardware that will hold it centered in the compartment. I don't remember the # of the cells I use, but they are the size of an S-76 and come out to just under 50 cents each.

Edit - The cells are #675.

[BrianL]

I recommend the CHRIS adaptor highly. I use them in my Leica CL camera, Weston Ranger and Metrastar meters as well as a couple of other cameras and the exposure meters were near spot on when compared to using the PX625. I do agree that if the unit can be recalibrated to use an alkaline battery it would be a godd way to go, maybe the better though more expensive than the CHRIS. I had my CL gone through just before the mercury battery issue arose but, if it needed any other work again, I'd have it recalibrated.

[MattKing]

The adapters that use hearing aid cells (#675) work well, and those cells are really, really cheap. It's easy to keep a couple of unused batteries in each bag (and I have way too many bags).

The CRIS adapters are great as well - I used one for a long time in an OM1 that I sold a while ago.

[mablo]

Hearing aid cells are wonderful. They work in most -70's mercury cell cameras. What comes to Rollei 35 in particular I think its meter is no good. It fails just when you need it (in the shadows or inside). It seems to need a certain amount of light to wake up. I'm happier without it.

[ic-racer]

http://www.paulbg.com/Nikon_F_meter_batteries.htm

Does anyone have any experience with these?

You can "re-use" the Wein cell the same way. That is, the ring slides off and can be re-used on a fresh battery.