| Wheel 1 | Wheel 2 | Wheel 3 | Wheel 4 | Mask loader | |
| Pos 1 | OPEN | Sloan_u | U653/17 | R1000R | Slit 0.6 arcsec |
| Pos 2 | f657/35 | Sloan_g | U534/17 | R2500V | PinholesMOS |
| Pos 3 | f666/36 | Sloan_r | U721/17 | OPEN | Slit 1.2 arcsec |
| Pos 4 | f680/43 | Sloan_i | U772/17 | TF_RED | Slit 2.5 arcsec |
| Pos 5 | f694/44 | OPEN | OPEN | R2500R | Slit 0.8 arcsec |
| Pos 6 | f709/45 | Sloan_z | U789/17 | R1000B | Slit 1.5 arcsec |
| Pos 7 | f723/45 | GR | U806/17 | R2500U | Slit 1.0 arcsec |
| Pos 8 | f754/50 | U738/17 | U823/17 | TF_BLUE | (Private) Slit 12.0 arcsec |
| Pos 9 | NULL | U755/17 | U840/17 | R300R | (Private) Slit 40.0 arcsec |
| Pos 10 | GTC8-23B_0009 | ||||
| Pos 11 | GTC8-25AMEX_0001 | ||||
| Pos 12 | GTC8-25AMEX_0002 | ||||
| Pos 13 | GTC2-25AMEX_0001 | ||||
