just thought'd i'll share this with ya'll.
just an example of the lens calibrated properly with the dandelion AF chip, so far so good, nailing all the shots with the AF green light in the viewfinder.
some tips to getting the focus bang on quick,
use the one-point (center point AF selection) and one-shot AF as this proves the most effective.
1) focus in to the region where you think you are getting the sharpest focus point
2) half press on the shutter release and then fine-tune adjustment till focus confirmation shows, beep or just the green light if you've deactivated the beep.
, on Flickr
ps: shot was taken at f1.2 and at iso 800 on 1000D