Excerpt: I did not wanted to spent a lot on a Macro lens, this is an excellent alternative, did lots of research online and by far this was the best choice. The construction and feel of these Tubes is good. I recommend to anyone who needs to use it on a time to time basis.
Excerpt: I like using these with the 70-200 since it allows me to vary the distance a bit using the zoom vs wobbling back and forth like it does on a prime. I played with various combinations of the tubes and all worked extremely well for macro work. if you are trying to describe what the tubes do, the best way to put it is that it makes your lens very near-sighted.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh, Rugged, Strong Construction
Excerpt: What's to write? These are tubes and as such, they perform very tubelike. The AF with these (using my Df) was very accurate and I was able to get very close. Only trouble was, when you get this close, manual focus is a pretty good idea!!
Excerpt: Works well with my Nikon D60 and D7000. The picture quality is good.Autofocus on AFS zoom lenses is slow / unreliable - especially when the tubes are stacked. However this works much better with prime lenses.