very brilliant thing

If someone can do something, then clearly SUPER; In my opinion for moving objects is not suitable because too little time available; I use it for static objects and because it is a hammer; But you have to find the right object distance, because too close to work as little as too far, and the margin becomes smaller the larger the ring.

The AF-S Nikkor 3.5-5.6 / 18-55mm VR DX on the Nikon D5200 I have tried the matter. I collect model trains of N scale (1: 160 scale; rather small compared to H0) and want to make detailed pictures of my locos. In addition I have the flash of the camera turned off and directed a normal 60W bulb (lamp hobbyists) on my object. The environmental conditions were dark, ie at night and only the lamp. Then I tested through the rings one by one from different perspectives. All who can be assembled correctly and the autofocus worked, but only in certain distances from the object and only with larger focal lengths. The results were remarkable in comparison with the pure objective. The optical Image Stabilizer of the lens I even hammer out some freehand Photos sharply with the 36er Ring, mostly I have, however, used a small tripod.

If you consider that the magnification ratio is given by f / (gf), where g is the distance to the object and when you place f using the focal length plus the ring distance (in my case 55 + 36 = 91, then you quickly on an imaging ratio greater than 1, which I think works well :-) However if gf is negative it's over; that is independent of the quality of the rings. Thus, it is my opinion at this macro struggle for 2 things: 1) operate the bayonet? 2.) does communication between camera and lens with the ring? Both works perfectly, so 5 stars from me.