I have found that I have to use manual focus for close-ups to get what I want in focus. Be sure to set the diopter on your view finder to your vision. Remove the lens, look through the viewfinder at a light (with contacts/glasses if you use them when shooting) and adjust the diopter until the little marks in the viewfinder are as sharp as possible.Originally Posted by Shebang
Your lens may be sharper at an f-stop of 5.6 to 11 rather than 32. (btw - nice lens.)
Tripod - I have a Slik U8000 and I can see it move even with 10# hanging off the bottom. My old $12 tripod with a 10# weight (the legs bend) actually works better. With the Slik, part of the problem is the quick release. I keep watching my local (no shipping) ebay and ads for a big, heavy portrait or video tripod just for macros.
Keep shooting and see what happens.
TF