How to Replace Light Seals on a Mamiya RB67

The Mamiya RB67 is a classic medium format film camera known for its exceptional image quality and robust construction. Over time, the light seals that prevent light leaks can become worn, cracked, or brittle. Replacing these seals is a relatively simple maintenance task that can help ensure your camera continues to function properly.

Materials You'll Need:

• A new set of light seals specifically designed for the Mamiya RB67
• A small screwdriver (Phillips head)
• A pair of tweezers
• A clean cloth or microfiber towel

Steps for Replacing Light Seals:

1. Remove the Back and Film Magazine

Start by removing the back of the camera and the film magazine. This will give you access to the light seals around the film gate and the back panel.

2. Remove the Old Light Seals

Carefully peel away the old light seals from the camera body. You can use a small screwdriver or tweezers to help loosen any stubborn areas. Be gentle to avoid damaging the camera body.

3. Clean the Sealing Surfaces

Once the old seals are removed, use a clean cloth or microfiber towel to wipe down the sealing surfaces. This will remove any dust, debris, or adhesive residue that may be present.

4. Install the New Light Seals

Align the new light seals with the corresponding sealing surfaces. Start by placing the seal around the film gate, ensuring it fits snugly. Then, carefully install the seal around the back panel. Press down firmly to ensure a secure fit.

5. Reassemble the Camera

After installing the new light seals, reassemble the camera by replacing the film magazine and back panel. Make sure everything is securely fastened.

Tips for Success:

• When choosing new light seals, make sure they are specifically designed for the Mamiya RB67. Using the wrong seals can result in improper fit and light leaks.
• Be patient and take your time when removing and installing the seals. Rushing the process can lead to damage.
• If you are unsure about any step, it's best to consult a camera repair professional.

Conclusion:

Replacing light seals on your Mamiya RB67 is a straightforward process that can help maintain the integrity of your camera. By following these steps, you can ensure your camera continues to capture stunning images for years to come.