Paul, here's 5 soccor shots, with no post processing, that I said
would post for you. Just loaded in PS CS and saved for web at 800
wide. You can see the focus area by looking at the grass.
handheld, Aperture Priority, AF Mode: AF-c, ISO 1600, 70mm, 1/3000
handheld, Aperture Priority, AF Mode: AF-c, ISO 1600, 170mm, 1/3000
handheld, Aperture Priority, AF Mode: AF-c, ISO 1600, 240mm, 1/3000
handheld, Aperture Priority, AF Mode: AF-c, ISO 1600, 240mm, 1/3000
handheld, Aperture Priority, AF Mode: AF-c, ISO 1600, 170mm, 1/2000
I'm sure that I was using a higher shutter speed than you were and
that makes a difference on some of your shots. I think that both of
us can get better results as we get used to this lens.
hapnet
--
Nikon D70 Kit, Sigma 70-300/4-5.6 APO Super II Macro, Canon F1 with
15/2.8 21/1.4 35/2 100/2 200/2.8 70-210/4 500/8 Reflex Mirror