Mamiya rb67 mirror lock up on 90mm sekor c question

[Filmfan101]

Hi, an engineer told me not to use cable release in the mirror lock up port on the lens as it can cause damage, has anyone heard this before? I’m using a good quality Nikon cable release and can’t see the problem as the port is designed to be used.

 

[ags2mikon]

That's a new one on me. I have using these things since 1978. But maybe I just didn't get the memo.

 

[Filmfan101]

That's a new one on me. I have using these things since 1978. But maybe I just didn't get the memo.

Yeah I thought it was strange I’ve been using it and can’t see the problem

 

[xkaes]

I never had a problem with it either, on any RB lens -- that's what it's there for -- but this isn't the first time that someone has a problem and it quickly becomes an epidemic.

 

[Trail Images]

I made this double cable release up many years ago now specifically for mirror lockup usage and have used it on every lens I have from 37mm-180mm to date without one issue. I can't think of any image I've shot 30+ years with the RB without using mirror lockup.

 

[MattKing]

Hi, an engineer told me not to use cable release in the mirror lock up port on the lens as it can cause damage, has anyone heard this before? I’m using a good quality Nikon cable release and can’t see the problem as the port is designed to be used.

Is there a chance that this advice was particular to a particular lens that was in somw way already compromised?
If the mirror lock up mechanism was partly damaged - stripped threads or something similar - I can see that advice being prudent for that particular copy.

 

[xkaes]

That's entirely possible. It's also possible that the user with the "problem" was using it incorrectly. Some people have "problems" with the double cable release -- which is nice, but optional.