Foam thickness

Discussion in 'Canon Film SLRs' started by GDN, Jun 7, 2019.

  1. GDN

    GDN Active Member

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    A technical question.

    I would like to change the light seal foam in one of my cameras.

    So does anyone know the thickness of the light seal foam that is required for mirror bumper and the film door for an AE-1 Program?

    1.0 mm for the film door, and 3.0 mm for the bumper?

    Suggestions.........

    Thanks

    Gary
     

  2. Craig Sherriff

    Craig Sherriff Active Member Site Supporter

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    Gary , I have a lot of old film cameras and find it necessary to replace the mirror bumper material.
    If you can not get replacement foam try the material computer mouse pads are made of.
    as for the thickness, measure the original but if the new material is a bit thicker I would not worry too much as it's function is to take the vibration out of the mirror as it slaps out of the way of the sensor receiving light.
    If you are still having problems send me a email and I shall send you some.
    regards Craig S.
     
  3. GDN

    GDN Active Member

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    Thanks for your reply Craig. The problem that I have is that the original foam has broken down, so I don't actually know the thickness that it should be.

    Gary
     
  4. Craig Sherriff

    Craig Sherriff Active Member Site Supporter

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    60D, 10D, 50D 1dmark3, T70, AV1, lenses ranging from 28mm to 600 mm, Mamaya C3 and 3 lens sets, Pentax MG and various lenses
    Have a look at your other cameras and measure what they are, this could give you a good idea of the thickness and it is then trial and error, still have a problem let me know.
     
  5. Robert Shears

    Robert Shears Active Member Site Supporter

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    Various OEM and 3rd party lenses in Pentax, Minolta and Canon.
    I was lucky and found an example of how to replace foam on a film camera I had that specified the thickness as well as the fitting methods.
    If you check out the internet with a search something like "replacing camera seal" you may find some information.
    I then purchased the materials from ebay.
    Good luck.
     
  6. Robert Shears

    Robert Shears Active Member Site Supporter

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    Pentax K-5, K-r, K20D, K100D Super.
    Canon G5, Canon 450D, Eos 100, 500, 600, T70 and T90
    Konica Minolta 7D
    Various OEM and 3rd party lenses in Pentax, Minolta and Canon.
    https://www.youtube.com/watch?v=E2VuUGUccMo , video on youtube for your camera, I do not know how to post a proper link unfortunately.
     
  7. GDN

    GDN Active Member

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    Excellent. I will have a look.

    Gary
     

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