The ornamental design for a photographic lighting apparatus, as shown and described.
FIG. 1 is a front isometric view of the photographic lighting apparatus;
FIG. 2 is a rear isometric view thereof;
FIG. 3 is front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is a cross-sectional view taken along line 9-9 shown in FIG. 7; and,
FIG. 10 is a cross-sectional view taken along line 10-10 shown in FIG. 5.
The broken lines in the drawings represent portions of the photographic lighting apparatus that form no part of the claimed design. The area between the sets of wavy broken lines forms no part of the claimed design.