Light Seal Placement Guides

Yashica YashicaMat TLR Placement Guide

Yashica YashicaMat TLR Placement Guide

Before doing anything, please go here
Yashica YashicaMat TLR Placement Guide
For more information on purchasing this kit, go here

You are installing a 5 piece kit for the YashicaMat Twin Lens Reflex cameras.

This light UScamera light seal kit includes,

Hinge end channel seal, back cover – 1 x 2mm
Latch end channel seal,  back cover – 1 x 2mm
Left channel seal, back cover – 1 x 2mm
Right channel seal, back cover – 1 x 2mm
Viewfinder/Light meter housing seal (YashicaMats w/ light meter) – 1 x 2mm


USCamera Light Seal Placement Guide | Yashica YashicaMat TLR

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 Yashica and more, start here.

General Installation Guidelines

I have several YashicaMats from different years.  I have research on serial numbers and will put that information here sometime in the future.

Many of the older Yashica cameras use wool/yarn type material in the back cover channels.

Most of the newest 124G models use foam in all the door channels.   I have an older 124G with a meter and that model year used the wool/yarn material in the left/right door channels and foam in the hinge and latch channels.

Very nice all of the film chamber light seal channels are very close to the same width.

You can start the installation with any seal you want first and continue to work in one direction. I also recommend to dry fit the channel you are installing before removing the backing.

USCamera Since 1998 | Pro Light Seal Installation Available | Light Seal Kits | Vintage Film Cameras | Yashica YashicaMat TLR Placement Guide

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


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

2 thoughts on “Yashica YashicaMat TLR Placement Guide

  1. Rod Grant says:

    Hi is it possible to ship a light seal kit for an early yashica mat ( rope type seal) over to Scotland

    If so how much can do paypal etc

    thanks Rod Grant

    1. Gray says:

      Thanks for contacting us. Yes we ship to Scotland. Our TLR kit here…fits all the Yashica twin lens cameras I have ever seen. Current shipping info is listed here
      Hope that helps. Gray

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