VF magnifier for Mamiya 7?

[boilerdoc2]

I love the 150mm lens on the M7. BUT, I seem to be missing too many focuses especially close up and at 5.6. Does anyone know of a eyepiece magnifier for this camera?
Thanks..........
steve

[Finder]

There is no viewfinder magnifier for this camera. But are you sure it is you? The 150mm lens could very well need to be callibrated - not the body to the lens, but the lens itself. This was a problem with my 150mm. First Mamiya simply adjusted the rangefinder to match the lens which means the 75mm and 50mm were not going to focus properly. With a bit of an effort and some examples, I got them to calibrate the lens.

[boilerdoc2]

Interesting. With the recent issues with Mamiya in the market place who might calibrate the lens/camera now? Thanks again.....
Steve