±2 (2, 3, 5, 7 frames at 1/3 EV, 2/3 EV, 1 EV steps) ±6 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps) ±6 (2, 3, 5, 7 frames at 1/3 EV, 1/2 EV steps) ± ...
±3 (3 frames at 1/3 EV, 1/2 EV steps) ±3 (3, 5, 7 frames at 1/3 EV, 2/3 EV, 1 EV steps) ±6 (2, 3, 5, 7 frames at 1/3 EV, 1/2 EV steps) ±3 (2, 3, 5, 7 frames at 1/ ...