The ornamental design for a mountingplate for a camera, as shown in the accompanying drawings and described above.
FIG. 1 is a top perspective view of a mounting plate for a camera, in accordance with the present invention;
FIG. 2 is a top plan view of the mounting plate of FIG. 1;
FIG. 3 is a bottom plan view of the mounting plate of FIG. 1;
FIG. 4 is a left elevation view of the mounting plate of FIG. 1;
FIG. 5 is a right elevation view of the mounting plate of FIG. 1;
FIG. 6 is a front elevation view of the mounting plate of FIG. 1; and,
FIG. 7 is a rear elevation view of the mounting plate of FIG. 1.
The broken lines shown herein depict environmental subject matter and form no part of the claimed design. In FIGS. 1-5, the broken lines in the form of an alternating series of relatively short dashes and relatively long dashes represent bounds of the claimed design.