Hi BigMackCam, Cipher,
I use Kenko AC+5 close up lens with 06 lens and Q7. "AC" for two-element achromat and "+5" for 5.0 diopter (i.e. focal length of this lens alone is 1/5 meters = 200mm).
FYI Kenko makes two lines of closeup lenses, "AC" line and cheaper single element ones, both are multi coated. Mine cost me less than 20 bucks when I bought it in Japan. Acromats should be better than single element ones as far as chromatic aberrations are concerned but I can still see some in out of focus area. Both are multi-coated.
I posted the following pictures to MaQro thread, this one is at about the closest.
Hoverfly by
k kwb, on Flickr
And this is at about the widest.
Flower by
k kwb, on Flickr
At the closest focus at the tele end, a 24mm wide subject (a tad smaller than an inch) just fits the full width of Q7 sensor, so the maximum magnification is something like 7.44:24 or 1:3.2. Working distance at the maximum magnification is probably 7 inches or so from the lens.
Auto focus works but you have to move the camera first so the focus is not totally off, then half-press the shutter button. That's just the nature of adding something like these on a native lens.
I used to use a C-mount fixed focus lens with a spacer for super compact go-anywhere macro, but these days that duty is shifted to Kenko and 06 lens simply because it's more convenient without increasing the bulk. C mount thing gave me larger magnification but I'm trading that with zoom, (auto) focus and mechanical shutter.