Varying exposure time at fixed ISO sensitivity
| t | ISO | Image extract | Profile | Comments |
|---|---|---|---|---|
| 0.3s | ISO 3200 |  |  | With such a short exposure I should have used mirror lock-up (or shoot from live view) to avoid vibration effects being visible. |
| 0.6s | ISO 3200 |  |  | |
| 1.3s | ISO 3200 |  |  | |
| 2.5s | ISO 3200 |  |  | |
| 5s | ISO 3200 |  |  | |
| 10s | ISO 3200 |  |  | |
| 20s | ISO 3200 |  |  | |
| 40s | ISO 3200 |  |  | |
| 70s | ISO 3200 |  |  | Jogged the telescope, but I kept this in to show the brightness still rising, to useless levels. |