To look for the sharpness of the picuture for Sigma 50-500 mm lens at 500 mm, I changed the aperture from f/8 to f/13.

#1346，4:50 am, 10/28/24, f/8, 1/40 s, ISO 200, +5 EV:

#1293，4:46 am, 10/28/24, f/9, 1/30 s, ISO 200, +5 EV:

#1295, 4:46 am, 10/28/2024, f/10, 1/40s, ISO 200, +5 EV:

#1312, 4:47 am, 10/28/2024, f/11, 1/15 s, ISO 200, +5 EV:

1315, 4:47 am, 10/28/2024, f/13, 1/25 s, ISO 200, +5 EV: