Mamiya RZ67 Pro II Shutter speed problem

Hey all,

 

This is my first post here. I hope that I will learn something new today because my RZ has been having some issues about the shutter speeds lately.

 

I noticed a few weeks ago when I was doing long exposures (under 1 minute) on bulb mode with a mirror lock up and lens (140mm) on N mode that when I finish the exposure by releasing the cable on the body, there was no click-sound that comes when the shutter closes. The shutter button on the body was facing the white dot, battery was fresh (silver oxide) and the dark slide was removed. I took off the film back and switched the body to M mode to see how the camera performs. I was shocked when I saw that the camera seems to be locked on the mechanical mode and therefore it shot only at 1/400.

 

It doesn't matter if I use the mirror lock up or not, built in shutter speeds or the bulb mode, the RZ still shoots only at 1/400. It is clearly visible that the shutter closes immediately after I open it. If I, for example, try to shoot with a 2 second shutter speed, the shutter closes immediately but there is a little click sound coming from the body exactly after 2 seconds. To make things even more bizarre, when I try to shoot the RZ over and over again without the film back, shutter speeds start to work for a while and then when I get back to the RZ after a few minutes, it AGAIN shoots only at the fastest speed. It seems to have a mind of its own.

 

Anyone facing similar issues? I am wondering whether this is a problem on the body or a problem on the lens. I have no other lenses to try with and unfortunately there are no other RZ users in my area. Thanks!

 

(sorry for occasional bad English)

 

Lauri

Had same problem with a Bronica. Was the lens.

Had same problem with a Bronica. Was the lens.

I hope that this case is also about the lens. My RZ is now being checked at the company I bought it from, so fingers crossed.

It sounds like the problm is eith the battery. I tried using lithiumbatteries once and the camera would only fire the shutter at 1/400. Changed back to Duracell alkalines and it worked perfectly.

It sounds like the problm is eith the battery. I tried using lithiumbatteries once and the camera would only fire the shutter at 1/400. Changed back to Duracell alkalines and it worked perfectly.

 

I had the RZ checked and they said it was the lens. Bought a new one and now its working perfectly. Yay!

Glad you are sorted. I will stick to my RB67. No electronics. Electronic cameras are a pita. Edited March 20, 2021 by laurencecochrane