Telka III difficult to diagnose light leak.

S

Sporriegetta

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Joined
Feb 12, 2017
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I've got a little occasional leak coming from a few millimetres in from the the lower left corner. The bellows don't appear to be great but testing in a dark room with a powerful LED torch doesn't reveal any pinholes in the bellows or leaks around the bellows attachment points. The one thing that's got me thinking is the pressure plate sits a little unevenly. It projects further forward at the top than the bottom. Is it possible that the light could be getting in the ruby window and getting through the paper backing or around it if the pressure plate isn't doing what it should? Or should I just get the bellows replaced? The leaks appear to be when the film is sitting for a long time between frames being shot although I'm careful to close the cover to the ruby window when not winding on.


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This frame shows the light leak well.

ddcb30ce5dc14e5d7791781620c46d84.jpg



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The stripe of leaking light doesn't quite align with the ruby window, but does align quite well with the sprung foot of the pressure plate.


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Due to the bellows being old and shadowing the frame edges I've cut out the bellows and sent them off to be remanufactured. Hopefully that'll be the end of the leak too.


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