That is pretty much what I do too. I do like the info that was given though and certainly will try the f11 rule. I copied the link that was given also.
This was shot at f6.3 1/320 ISO 100 500mm lens. Manual, mirror lockup and magnified. I forgot my remote so put it on a timer. Still not as sharp as I would like, but had fun anyway!
Straight Shooter wrote:
I find the best way to get sharp focus is to put focus to manual, turn on live view, enlarge live view image to maximum, and fine tune the focus there. When it's set, you can turn off live view to shoot. Patience and practice make perfect!