Marrying 2 different MF systems ?

aoluain · Jan 20, 2010

I have a mamiya 645 Super with an 80mm f2.8 lens
I also have a Pentax 645 FA 33-55 lens which I use
on a 5D via a Zoerk shift adapter for architecture
work, I would love to be able to mount the P645
lens on the Mamiya.

I understand that itis possible in theory as the registery
distance on the P645 is greater than the M645.

Has anyone done this before?

are there adapters available?

removed-user-1 · Jan 20, 2010

aoluain said:
I have a mamiya 645 Super with an 80mm f2.8 lens
I also have a Pentax 645 FA 33-55 lens which I use
on a 5D via a Zoerk shift adapter for architecture
work, I would love to be able to mount the P645
lens on the Mamiya.

I understand that itis possible in theory as the registery
distance on the P645 is greater than the M645.

Has anyone done this before?

are there adapters available?

You might need a machine shop to custom-make one for you (I understand that Zorkendorfer did do custom work at one point although they don't list the adapter you need).

Bosaiya · Jan 20, 2010

Isn't that what duct tape and bailing wire are for? I have more than several lenses held on (or together!) with tape.

Pupfish · Jan 20, 2010

A good used Pentax 645N might not cost that much more than a custom adapter these days. You'd also then get autofocus, spot and matrix metering, auto bracketing, OTF flash sensing and a motordrive built in-- as well as a back up body.

keithwms · Jan 20, 2010

You might try glueing a mamiya body cap to a pentax lens rear cap, drilling a hole through both, and presto, maybe you'll luck out and have the right distance without any fuss or expense. In a pinch, I made a few adapters this way, using a hole saw bit to make the hole.

aoluain · Jan 21, 2010

Hhhmmmm thanks for the info . . . I actually
did consider fabricatng one myself.

thanks for the Zoerk link, totally forgot they did
those adapters, but yea I dont see a solution on their site.

I did consider buying into the Pentax 645n but found them to
be costing more than what I got the full Mamiya system for.
And the Mamiya is that bit more versatile and modular.

From this link . ..

http://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html

I estimate the distance difference be 7.57mm, I just might give it a go
the plastic body and lens caps sound like my type of budget, lol

thanks again

Marrying 2 different MF systems ?

aoluain

removed-user-1

Bosaiya

Pupfish

keithwms

aoluain

Privacy & Transparency

Privacy & Transparency