Best quality, useless for (most) DSLR.

No doubt that Raynox lenses is the best of its kind, but this tele adapter is of very limited usefulness for anyone!

For the 62mm mounting thread is somehow misleading me to believe that it should work with my 62mm diameter lens. In fact the rear element is only about 3cm, so when attached to the lens it only shows a small circle on the screen. It may be good for a very small lens cameras, like Canon G series (with optional adapter).