I'm currently using blackout curtain material which is a lightweight cloth with rubberized lining. My last bellows lasted about two years before developing lots of light leaks. I recently tried this fabric: http://www.seattlefabrics.com/Black_Out.html but it wasn't light tight as advertised. I'm shooting macros so the lighting is close to the bellows.
Does anyone have any suggestions for which fabric to use?
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