Contax 645 Camera Problem, Please help! :)

[haring]

I have a Contax 645. I have the battery grip for it so I power it with 4 rechargeable AA batteries.

The problem: sometimes without any explanation the yellow exposure scale in the viewfinder goes blank. The f/ numbers and shutter speed info disappear in the viewfinder and the whole camera goes blank. I try to press the shutter button but all I can hear is a clicking noise. I keep trying and all of the sudden the viewfinder is back and I can see the exposure, shutter speed, etc. I have tried to change the batteries and replace them with freshly charged ones but I don't think that the low battery is the problem. I have another Contax 645 and that works without problems with the batteries.

Did this ever happen to you? How can I fix it? I can't rely on the camera if it just decides not to show me exposure, shutter speed, etc info. It always comes back but some times it takes 4-5 minutes... What to do?

Thanks for helping!

 

[brucemuir]

I'm just throwing suggestions here.

Does the camera do this only when the auxiliary battery grip is attached?
Maybe there is something up with the contacts between the grip and camera body. Try cleaning them.
I didn't have the auxiliary grip for the kit I use sometimes so am not entirely familiar with the setup but I'd try cleaning those contacts.

IDK you say power returns on it's own after sitting so...
A trip to TOCAD may be in order while you still can.

 

[haring]

Bruce!
I will clean it tomorrow early morning! THANKS for the suggestion!
Otto

 

[brucemuir]

Good luck Otto.
Let us know if it works.

I don't know what the situation with the backs are and if they can cause a miscommunication but they have a bunch of contacts on them too. Might be something else to consider.
Don't be too rigorous when cleaning these as you don't want to bugger up any of the gold plated on there.

btw: you have some really nice work on your website. Looks like you are using that 80 f/2 very well

 

[haring]

Bruce!
You are awesome! I will clean those contacts on the back as well!
Will keep you updated!
Thanks so much!!!

 

[haring]

So far no problem!!!! I am happy! I will take the camera for a walk this week. I hope there won't be any issues...!