Hi all, I have a problem with my T6 and 55+250mm f4-5.6 IS STM lens. I acquire (or think I have) focus lock and even though the photos show the focus square is on the face of the Turkey Vulture the photo is blurred. IS is on and I am in AI servo with center weighted focus. The first photo Capture.jpg was taken at TV/1,000,AV/9,ISO 125 and 250mm. The second photo Capture2.jpg was taken at TV/1,250,AV/5.6,ISO160 250mm. I would appreciate any help.