QUOTE(ramblie @ Nov 4 2008, 03:54 PM)
Ya la...that time the wind blow and my AF not focused well...
That's why la the plant not sharp

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!