QUOTE(PCHo @ Nov 4 2008, 10:16 PM)
1st off, it is not the wind or the grass's problem that is causing u to not focus well.
It is ur camera settings.
At that kind of aperture and shutter speed, don't expect u will get a sharp picture especially when there is movement.
You need a very fast shutter to capture things in motion, e.g. 1/2000s.
And it was broad daylight, so using such a shutter speed is no problem.
2nd thing, u r shooting macro, why r u using such a small aperture?
Remember aperture affects the "bokeh" effects of macro shots.
The bigger the aperture, the better the bokeh (f/2.0 > f/7.1).
3rd thing, if u r really having problems focusing, y not manually focus? (assuming u used AF for this shot).
This way, the camera will not be cheated by movements of the grass.
Not bombing u here Ramblie, so no hard feelings ya!
Learn from mistakes.
I m learning from a lot of guys here too!

This is what I'm waiting for
1. Yeah, I think I should use Tv mode rather than P mode and set shutter manually so I can catch the movement. I'll do next time and I'll remeber your advise here.
2. Means, I have to move more closer to the subject, is it right? Because it relative with the distance, right? Correct me if I'm wrong.
3. I myself still not confident to use M mode. Last time when I still using 35mm SLR, two unit of my camera (EOS 50 and EOS 500) breakdown just I'm always using M mode. But, I'll try to using M mode for my next close up picture.
Anyway, I'll using Tv mode first then M mode if the picture still look blur.
Thanks again bro for your valuable and rememberance critics and comments here.