Ive had a D5000 since April.Took some lovely pics in India. Recently was in Adelaide and had a hard time taking wildlife pics in dim light. Opened aperture to max on a 200mm zoom, shutter speed was around 1/125. Could it have been shake or dim light that caused the blurring. I made sure I kept the camera firm for minimal shake. Any suggestions, btw I was doing it on manual mode. Am wondering if the manual mode is a problem or I did something wrong.I learnt on B&W manual camera and my basics are not bad.Please advise.Ta