The ornamental design for a portablemotorizedcameraslider, as shown and described.
FIG. 1 is a first perspective view of a portable motorized camera slider showing my design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a perspective view of another state of the portable motorized camera slider; and,
FIG. 10 is an enlarged view of the selected portion of FIG. 2.
The dashed or broken lines shown in the drawings depict portions of the portable motorized camera slider in which the design is embodied that form no part of the claimed design.