The "accordion thing" is a bellows extension. Its purpose is the same as a set of extension tubes but it is adjustable and can be extended farther. The setup in this photo looks like it is extended about as far as it will go, allowing for higher magnifications than would otherwise be possible. Note the 10:1 magnification (or thereabouts) in the last image of the series.
scoundrel1728
Guest
06-Oct-2009 16:40
what is the accordin thing between the lens and the camera body? I do not have a maco lens but have tried reverse macro( n