303 221 2394


  • Mamiya M645 / M645 1000s / M645 J Series Mirror Cushion Kit

Mamiya M645 / M645 1000s / M645 J Series Mirror Cushion Kit

USCamera custom mirror cushion kit for the Mamiya M645 / M645 1000s /  M645 J. This M645 mirror cushion kit includes 1 left damper cushion, 1 right damper cushion and front damper cushion on the edge of the viewfinder frame front.

In stock (can be backordered)

  • Description
  • Additional information
  • Reviews (0)


Mamiya M645 / M645 1000s / M645 J Series Mirror Cushion Kit

USCamera Custom Light Seals
Mamiya Sekor / Mamiya Film Cameras
Our kits start the finest imported open cell foam we could find.
USCamera makes other popular film camera light seal kits go here

Read installing light seal kits go here.

Digital cameras will never look like these vintage film cameras though the first digital compacts were…

The most important and time consuming work is removing the old seals. Focus on clean, clean, clean. Clean the old residue from the door channels, mirror cushion area, door hinge area and anywhere else you are replacing the seals. The finest adhesive in the world will not adhere to that sticky, gooey residue that was once a quality light seal. Proper installation will give you thousands of light tight exposures.

USCamera  Mirror Cushion Installation Help – Mamiya M645 

Before you do anything, please read general instructions on installing light seals here.

Next, take all of the seals out of the kit and lay them out on your work area. This kit includes,

1 x 3mm – mirror damper cushion, right side
1 x 3mm – mirror damper cushion, left side
1 x 3mm – mirror damper cushion, front

Tech Note. Use something to protect the mirror while you are removing / replacing the cushions. To properly install the these damper cushions you will need to remove the black viewfinder mask under the focusing screen assembly. DO NOT turn the focusing screen adjustment screws. These are visible after removing the focusing screen assembly. 1 left rear corner, 1 right rear corner and one  front/center. The other 3 screws visible are the mask retaining screws.

Damper cushion, front. This seal needs to be installed 1st. It is easier to install this seal with the lens mount removed but that is up to you. Because of the disassembly involved we cannot address that here. Install this seal centering it on the front casting using the front finder adjustment screw as a reference.

Damper cushions, right / left. With the frame and screen assembly removed you will see 2 small strips of fabric that are lightly glued to the side finder frame. You do not want to completely remove those strips. Carefully peel the fabric from the front to the back until they are clear of the cushion. Use tape to keep them out of the way. Now you can remove / replace the right and left side damper cushions.

Additional information

Weight 1 oz


There are no reviews yet. Add a review

Welcome to USCamera. Our imaging parts and information superstore. New product added everyday. Need something not listed? Email us with your request. Dismiss