@cromwell@jreyna so think of opposites ...
small number = big hole = faster shutter speed* = blurred background
big number = small hole = slow shutter speed* = focused all the way through
*depending on the ISO sensor sensitivity.
http://stopshootingauto.com a very simple explanation. If anyone needs any additional help search for a post called steps, stops - a visual learning aid or tool, its pretty recent and it helped that final penny to drop for me.
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small number = big hole = faster shutter speed* = blurred background
big number = small hole = slow shutter speed* = focused all the way through
*depending on the ISO sensor sensitivity.