Light Seal Placement Guides

Contax 139 Quartz Placement Guide

Contax 139 Quartz Placement Guide

Before doing anything, please go here
Contax 139 Quartz Placement Guide
For more information on purchasing this kit, go here

You are installing a USCamera light seal kit for the Contax 139 Quartz

This 5 piece light seal kit includes,

Top channel seal, camera body – 1 x 1mm
Bottom channel seal, camera body – 1 x 1mm
Mirror cushion – 1 x 3mm
Hinge seal, back cover, hinge end – 1 x 2mm
Latch plate seal, back cover, latch end – 1 x 3mm

USCamera Light Seal Placement Guide | Contax 139 Quartz

General guidelines for installing this Contax kit

Tech Note. If you look at the hinge side of the back cover. you will notice a very small slotted screw attached to the hinge pin.  That pin will retract if you push straight down on the screw with your finger nail.  I find it much easier to work on the film back when it is not attached to the camera.

Hinge Seal, back cover. Install this starting at the top edge of the back cover, hinge side and work your way down.

Latch plate seal, back cover. Install by centering this seal on the door latch plate

Door channel seals, camera body. Install the upper and lower back cover channel seals starting at the hinge side on the camera body, working from right to left. The upper channel has the counter actuation lever. You will need to install this seal as close to each side of the counter lever opening as possible.

Mirror cushion.  Now, with the utmost care, remove the old and install the new mirror cushion.  Remember if any thing touches the focusing screen, it will likely be permanently damaged.

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.

See all USCamera light seal kits for Contax and more, start here.

USCamera Since 1998 | Pro Light Seal Installation Available | Light Seal Kits | Vintage Film Cameras | Contax 139 Quartz Placement Guide

Lastly, always made to inspire…see New film camera products.

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About Gray

As a veteran attending National Camera's resident camera repair school in 1979, is where I found my true calling for the demanding yet extremely interesting field of photo equipment service and sales. For 25 years we grew every year. The staff and I serviced tens of thousands of film camera items, trained many technicians, met thousands of wonderful customers and truly had a fantastic time. Within 2 years of 2004, my service experience was devalued somewhat by the internet, film camera sales/service flatlined. Camera stores 50 times larger than mine were closing. I could see a new opportunity on the Internet. USCamera started as information site then became a family run internet business. Our mission remains the same, • Specialize in Vintage film equipment, mostly after 1958 • Knowledgeable • Provide quality products • Superior Service • Always available via phone - contact form – email All of us at USCamera look forward to serving you. Gray USCamera.com

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