Focus Control Device

FIG. 1 is a top and right perspective view of a focus control device, showing my new design;

FIG. 2 is a top and left perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side view thereof; and

FIG. 8 is a left side view thereof.

The broken lines illustrate portions of the focus control device and form no part of the claimed design.