Posted by a reviewer on Amazon

While this is a quality product made of aluminum and not plastic i think i will be returning it

Posted by a reviewer on Amazon

I didnt realize my auto focus and stabilization would no longer work as the lens could not communicate with the camera

Posted by a reviewer on Amazon

Not sure how it is supposed to improve the macro lens

Posted by a reviewer on Amazon

The fitting ring was hard to figure out at first

Posted by a reviewer on Amazon

This isnt literally true of course but the point he was trying to make is that something that costs more isnt always better than a cheaper version of the same thing

Posted by a reviewer on Amazon

They decidedly do not represent different price points of the same thing

Posted by a reviewer on Amazon

The fact that i originally thought they did only reflects my growing yet still weak expertise in the paraphernalia of macro photography

Posted by a reviewer on Amazon

A tube and supports no electronic connection between camera body and lens