The ornamental design for a camera, as shown and described.
FIG. 1 is a front perspective view of a camera showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left-side elevational view thereof;
FIG. 5 is a right-side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a reduced front perspective view thereof showing the camera in use.
The broken lines in FIGS. 2 and 7 depict portions of the camera in which the design is embodied which are not considered part of the claimed design. Additionally the dash-dot lines in FIG. 8 are for environmental purpose only and form no part of the claimed design.