I am actually not seated near to the stage and was shooting at f1.8,first then shooting manual focus lens but this is from what i see in view finder that it is in focus,but very pixelised as i am using 1600 on the k7,will try to be seated more infront next time if i can or i am thinking did the pictures look out of focus due to me being seat far and using the f1.8?hoping to learn more and be a better shooter on manual lens..thanks