Pentax 67 MLU Issue

[Noah B]

I've done some extensive researching on my issue, but haven't quite found any other threads that entail my situation and I'm a bit stumped. I just picked up a Pentax 67 MLU version and although it's in mint condition, it had been sitting around for I don't know how many years. The light seals will need replacing, which I've done on other cameras before, so no biggie. I ran a roll through the camera today and the shutter speeds are fine, but sometimes the mirror has the tendency to stick itself in the middle and won't go back up. I removed the battery a few times and the mirror went back up, but eventually that stopped working. I ran through all the speeds and it seemed fine, and left the camera sitting for 2.5-3 hours.

I came back and checked it again, and the second shutter actuation the mirror stuck itself in the middle again. I pushed the mirror down and it brought itself back up, and the camera works fine now. I'm certain that when I try again in the morning the mirror may stick itself in the middle again. I've read a lot of other threads with similar problems, but none in my case. If it's an easy fix such as cleaning the magnet electrical contacts, I can tackle that after work one day. If it's a deeper issue, I'll just drop it off at my local camera repair shop and not worry about it.

Anyone have any ideas?

 

[Tobes71]

Pentax 6x7 mirrors stick at half way when the battery goes flat, so changing the battery would be the first thing I'd do. There is also a small recessed button on the side to reset the camera - don't touch the mirror. Otherwise I'd just send it for a CLA and good once over from some one who knows what they are doing. If it has been sitting for years it almost certainly need re-lubricating and and all the contacts cleaning, and this will save on wear and tear and unreliability further down the line.

 

[Chrismat]

Sending it to Eric Hendrickson is a good option. http://pentaxs.com/