F2.8 (or as high as you can) + manual focus = fences disappear.
Also helps (with SLR) to keep panning after you know the shutter has gone. Its that split second when you cant see through the mirror that it takes it. I use to slow down/stall when I heard the click, but it makes for FAIL pictures. I now keep panning even after lifting the finger.
Also (giving away my trade secret here) the human stabliser. If you have a large lens like my 70-200, hold your left arm out straight, bend back toward your chest. Rest the lens above your elbow on the kink (you will find a spot to settle it)
Put the camera to your eye, and with your left hand, grab lightly/rest it on the top of your right wrist.
I'll take a pic one day if you can't figure it out. But it can help dramatically