675 to 625 O rings / OM1 and Luna-six

[john_van_v]

Hi all, there is no category for O rings, so I thought I would mention here that I got O rings in two sizes from a hardware store, but they were out of their boxes so I don't know the sizes. They both fit snugly around the air-zinc hearing aid battereries that go for 8 for 6 bucks.

I got skinny ones and fat ones.

A skinny one works well with my Oly OM1; it is a tight fit around the 675 air-zinc hearing aid battery, and not really tight in the battery case, but screw-on lid holds the o ring snug, holds things in.

For my Gossen Luna-six I put a fat one in the bottom of the battery compartment, and a skinny one on the top battery. The skinny one on top likewise fit into the screw-on lid holding things tight.

I bought out the store, and have about 2 dozen of them in both sizes, so if anybody needs a few IM me for a Gossen or an OM1

The Gossen Luna-six acted weird on startup. When I did the test with the switch on the bottom, the needle jumped all over the place.

Other than that it was off a consitent 2 stops in comparison with my reliable meters.

The Oly OM1 meter was right on all the way. That is a special camera, well worth the hundred bucks they generally go for.

 

[rolleistef]

You might have not posted your message in the right forum... try the "repair" one?

 

[john_van_v]

You might have not posted your message in the right forum... try the "repair" one?

You don't get it, do you?

 

[rolleistef]

well, it's an O ring that fits for most camera that used mercury batteries (my SP1000 has one), but FSU cameras don't use any batterie (except SLRs)... hence my answer 🙂
But your finding is interesting anyway, worth being mentionned, since many oldies-newbies need such info.

 

[MartinP]

I tried fiddling around with the hearing aid batteries in my Gossen meter - but then I found that Gossen do a cheap(ish) adapter as a standard part. It works perfectly with two SR-44 silver-oxide cells.