focusing screen on a Mamiya 330

[TexasRancher]

Hello,
How does one go about changing the focusing screen on a Mamiya 330? How about the 330F? I have both.
charlie

 

[MattKing]

For the C330:

Undo the knurled bolt at the back of screen, then lift the screen and housing up and back and remove the screen and housing together.

Put the new screen and housing in the same way, in reverse. Then tighten the knurled ring.

Watch out for dust. Check to make sure that the foam under the screen hasn't deteriorated.

 

[Rick A]

http://www.butkus.org/chinon/mamiya/mamiya_c330f_prof/mamiya_c330f_prof.htm

 

[grahamp]

Knurled knob at the back to get the finder off. Then there is a catch at the front of the screen that you release, and it lifts off from the front. You can see the catch (open) in the screen underside view at http://grahampatterson.home.comcast.net/~grahampatterson/grahamp/c330.html