I just got this lens and love it so far. BUT, I went outside with it this weekend and took some shots, but I could only get about 1 or 2 dozen shots before I ran out of batteries. AND I am using the grip with TWO batteries. At first I thought my batteries were not good or were already run down, but when I went back inside to shoot the basketball games they charged up no problem and lasted just like normal. I recharged and went outside between later games and the same thing happened. The weather was about 40-45 F and sunny. The sun made it feel warmer then it was.
Do you think the cold zaped the batteries that fast or was I just shaking so much the IS was going crazy and eating up the batteries, or is this normal for IS systems? Or any other ideas? Or was I holding down the shutter half way so long it over used the IS?


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