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Magnetic sound

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  • 70mm mag prints
  • 35mm mag prints
  • 16 mag prints
  • mag tracks and vinegar syndrome, storage practices

70mm Mag Sound Formats


  • why we do it, how we do it
Instructions on proper demagnetizing/degaussing of equipment.


  • Acetate prints with magnetic soundtracks are especially prone to vinegar syndrome. Signs of decay might be flaking mag track, stickiness, vinegar smell, warping.
  • Magnetic oxide is applied to the film base. For long term storage prints should be emulsion in (so the magnetic stripes will be facing out). Storing prints the wrong way risks "print-thru" where-in the oxide begins to rub off onto the layer of film below it.

See Also