I am absolutely satisfied with the product, almost excited. I have previously tested an expensive macro lens, and can result in hard to see differences.
The autofocus function is working properly if you use a ring and when you advance a little bit manually vorfokusiert (more rings in a row I have not tried yet, because I've seen so far makes no sense in it). I use the recordings an attached flash (Di622 Mark2), and the images are razor sharp, really incredible.
I'm using a Nikon 3100 camera, and have connected the rings before a Nikon DX 18-105mm lens.
For me, the idea has been done on a much more expensive macro lens for this purchase.
