Current Filter Wheel Configuration
Lower Filter Wheel (FW1)
| Position | Display Name | Focus Offset (µm) | FITS Header Value |
|---|
| 1 | OPEN | 0 | OPEN |
| 2 | SL-u | 245 | SDSS-U |
| 3 | SL-g | 245 | SDSS-G |
| 4 | SL-r | 245 | SDSS-R |
| 5 | SL-i | 245 | SDSS-I |
| 6 | SL-z | 245 | SDSS-Z |
| 7 | CN | 240 | CN |
| 8 | C3 | 240 | C3 |
| 9 | Hα-off | 220 | HALPHAOFF |
| 10 | BC | 240 | BC |
Upper Filter Wheel (FW2)
| Position | Display Name | Focus Offset (µm) | FITS Header Value |
|---|
| 1 | OPEN | 0 | OPEN |
| 2 | DARK | 0 | DARK |
| 3 | C2 | 240 | C2 |
| 4 | GC | 240 | GC |
| 5 | VR | 270 | VR |
| 6 | I | 205 | I |
| 7 | R | 205 | R |
| 8 | V | 170 | V |
| 9 | B | 170 | B |
| 10 | U | 205 | U |