SJB1 said..
Holy smokes...that lens is sharp for a super tele
What body were you using neng? Thanks
Canon 5d Mark II. I found out, it's not easy to track object( will test more for this ), the camera hasn't got zone focusing and at 600mm just little movement, can throw object out of the frame. When seeing photo has been taken by this lens in full screen on my PC's monitor, it makes you feel you right in the action when compared with 70-300, it gives more shallow depth of field. So far so good, happy with it.