Cameras:
Still photography and hand-held video cameras for personal use are allowed in the ballpark. Per MLB restrictions game action cannot be recorded. Professional photography equipment, cameras with lenses larger than four inches and camera support pods are not permitted. Please be courteous to those around you when taking pictures. Please do not stand at the bottom of an aisle to take pictures.

http://losangeles.angels.mlb.com/ana/ballpark/guide.jsp#C