Mamiya RZ 67 shutter lag only on time value settings.

[Paul321]

I have a Mamiya RZ 67 with a 180mm lens with a RZ67 AE prism finder II.
When using the prism finder you have to set the time value dial on the side of the camera to 'AEF' and I set the time value dial on the prism finder to the acquired time setting for exposure.
I recently noticed there was a shutter lag when a photo was taken. I have just had it serviced and the problem is still occurring.
The funny thing is that the shutter lag does not occur when the prism finder time vale dial is set to 'AEL'.
The shutter lag only occurs when the prism finder dial is set to say- 400th, or 250th or any other 'number' on the dial.

Please refer to 'photo A' for time value dial set to 'AEL' and refer to 'photo B' to time value dial set to a number, 400th, 250th etc.

Has anyone seen this before?

Does this happen because of the lens or the body?

Does anyone know how to fix this issue.

I would of thought that the service men who say they 'fixed it' would of let me know if it was a lens issue.

Any help would be greatly appreciated.
Thanks,
Paul

 

[iakustov]

Hi Paul,

What is the shutter lag you describe, did you get overexposure?
Have you tried it without prism in the same time settings on the main dial on the left side?

 

[EdSawyer]

and have you tried with a different lens? I have an RZ and that same prism, I always leave it on AEL and shoot it that way...