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Author Message   T6nn Tinkerer Username: T6nn Post Number: 31 Registered: 06-2009 Rating: N/A Votes: 0 Posted on Tuesday, July 31, 2012 - 04:43 am:    Sometimes it is useful to fix aperture blades to each other before the disassembly with a round piece of masking tape. For example in the scenario, described by Rick, where you only need to lift and reposition the moving plate. This trick works with oil-free blades only, of course.