The ornamental design for a camera, as shown and described.
FIG. 1 is a top, front and right side perspective view of a camera, showing our new design;
FIG. 2 is a top, rear and left side perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The pair of broken line tubes protruding from the top of the camera represent wiring and form no part of the claimed design.
The broken lines spirally disposed about the exterior surface of the cylinder projecting from the top face of the camera represent threading and form no part of the claimed design.