| exposure time (ms) | frames | maximum background mean value | minimum background mean value | maximum background standard variation |
| 300 | 352 | 187.132 | 175.943 | 10.182 |
| 700 | 217 | 228.115 | 237.360 | 10.716 |
| 1100 | 281 | 269.625 | 259.822 | 14.332 |
| 1600 | 302 | 382.4960 | 357.406 | 17.486 |