Inconsistent aperture rings

Started Apr 2, 2014 | Discussions thread
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ljclark Senior Member • Posts: 2,386
The REAL Answer for the Unmarked 10-24 Aperture Ring...

It has no markings because there are no stops to the aperture ring.  It just turns and turns -- either direction.  It does click.

This is an internal design decision and I suspect the diaphragm is deeply buried in the lens body and there is no physical connection.  Someone who understands switch logic can probably explain this better than me.

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