Without reading the article I can only speculate. I assume that it's an adapter that has threads that fit your zoom lens on one side and a Nikon lens mount on the other size. You mount the adapter to the camera body and screw in the lens backwards.

Problem. You can't stop the lens down because there is no manual diaphragm.

A set of close up filters that screw to the front of your lens would be a better choice for inexpensive macro.

Thank you very much
M.V.Ott

The reversal will give you greater magnification -- as said without adjustments. Another thing to do is get a reversing adapter ring, put a 50 mm on the camera, then reverse the other lens. You will be surprised with the enlargement.This may be of interest to you for stepiin rings up and down. Don't forget to use a tripod. The wider the angle lens, the larger the magnidfication. A good way to kill time and get unexpected results.

http://www.photofilter.com/Step_up.htm

Good luck

I really thought the image is so good. You cannot go wrong with this at all. It really makes you think so much. The options are endless here.
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