Light leak from rear, what material?

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j-dogg

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I put a small compact in various parts inside my 5x7 to check for light leaks and I believe one to be coming from the rear as I can faintly see the back of the lens at 15" f2.8 ISO 400.....what material is this and where do I get it?
 

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shutterfinger

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There are a virety of materials that can be used if an exact origional replacement cannot be found.
1. Black velvet from a fabric store.
2. 1/8 inch thick black felt from fabric or hobby/craft stores.
3. heavyweight black cotton fabric.
Use http://www.homedepot.com/p/Motsenbo...over-Lift-Off-2-407-01/100029845#.Un6zo-JanJU to remove the old material without damaging the wood back and its finish unless you gouge it scraping.
An excellent product for attaching the new fabric: http://www.homedepot.com/p/DAP-Weld...e-Contact-Cement-25332/100174435#.Un60s-JanJU
 
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j-dogg

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well done, I'll do it tomorrow

what are the chances of that light leak protruding on to film?
 

bdial

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I used velvet ribbon that I got from the fabric store, and either used spray-mount or hide glue mixed from Knox gelatin to glue it (don't remember which). The nice thing about the hide glue is that it's completely reversible.
 

Mark_S

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One cheap insurance method is to drape your darkcloth over the camera bellows and back before removing the darkslide, then expose like this and replace the darkslide before removing the darkcloth.
 
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