I claim the ornamental design for a camera controller, as shown and described.
FIG. 1 is a top perspective view of a camera controller of the present invention;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken line showing of camera controller is shown to illustrate environment only and form no part of the claimed design. The dash-dot broken lines in the drawings define the boundaries of the claimed design and form no part thereof.