SQ-A ME prism trouble

[NJS]

I recently acquired ME prism from KEH, BGN. Since I live in Europe sending it back is not an option so I hope you guys can help me a bit with it:

It seems that ME prism always adds +2EV, no matter what back I put on it or if I try with the new battery.

Okay, if I want to shoot 400asa film I can always dial 1600 on the back and get the right exposure value, but with anything above 800asa it is just impractical, just takes time and I got it for street type of shooting mainly, candid stuff and etc. so...

any of you fellas know if there's a way to re-calibrate it, or have any other idea what might help?
It's a CDs based prism so I guess it drained a bit, but I also hope there's some nice way to set it's EV properly.

thanks!

 

[glbeas]

The compensation dial is working properly?

 

[NJS]

my mistake, sorry with bothering with this thread, I'm used to different communication between the camera, prism and the lens.
I simply cleaned the contacts between prism and the body a bit and now it gives right EV.

 

[NJS]

...and it worked for few minutes, now it's back to 'normal'. cleaning contacts again didn't help. perhaps someone 'repaired' it and set cds wheel +2 by mistake.
sorry for relentless bumps.

 

[Sirius Glass]

Check the battery. It might be on its last legs.

Steve

 

[NJS]

oh, that was one of the first thing I did, I get same +2EV with fresh one. also checked with all 4 lenses I have at all ƒ values, it gets the ƒ-value read from any lens.