| Filter | FITS Header Value | Pattern String | Focus Offset (µm) | Central Wavel. (Å) | Filter Width (Å) | Flatfield Lamps | Nominal Image | Latest Image | UT Date of Latest Flat | Count Rate (ADU/s) | Exptime for 20k cts (s) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Non-Filter Positions | |||||||||||
| OPEN | OPEN | OPEN | 0 | Image Link | 2022-05-12 | 25000 | 0.81 | ||||
| DARK | DARK | DARK | N/A | ----- | ----- | ||||||
| 4 Hole Mask | 4HOLEMASK | 4Hole | ----- | ----- | |||||||
| Johnson-Cousins Filters | |||||||||||
| U | U | U | +140 | 3652 | 524 | Photo Floods | Click Here | Image Link | 2021-09-18 | 4700 | 4.2 |
| B | B | B | +105 | 4448 | 1008 | Dome Lamps, 12V | Click Here | Image Link | 2022-06-13 | 1900 | 11 |
| V | V | V | +105 | 5505 | 826 | Dome Lamps, 12V | Click Here | Image Link | 2022-06-13 | 3300 | 6.1 |
| R | R | R | +140 | 6581 | 1576 | Dome Lamps, 12V | Click Here | Image Link | 2022-06-13 | 5000 | 4.0 |
| I | I | I | +140 | 8059 | 1543 | Dome Lamps, 12V | Click Here | Image Link | 2022-04-02 | 6200 | 3.2 |
| Sloan (SDSS) Filters | |||||||||||
| SDSS u' | SDSS-U | SL-u | +180 | 3557 | 599 | Photo Floods | Click Here | Image Link | 2021-09-18 | 3900 | 5.1 |
| SDSS g' | SDSS-G | SL-g | +180 | 4825 | 1379 | Dome Lamps, 12V | Click Here | Image Link | 2022-09-30 | 4000 | 5.0 |
| SDSS r' | SDSS-R | SL-r | +180 | 6261 | 1382 | Dome Lamps, 12V | Click Here | Image Link | 2022-09-30 | 5300 | 3.8 |
| SDSS i' | SDSS-I | SL-i | +180 | 7672 | 1535 | Dome Lamps, 12V | Click Here | Image Link | 2022-09-30 | 4800 | 4.1 |
| SDSS z' | SDSS-Z | SL-z | +180 | 9097 | 1370 | Dome Lamps, 12V | Click Here | Image Link | 2022-09-30 | 6000 | 3.4 |
| Other Broad Band Filters | |||||||||||
| V+R | VR | VR | +185 | 6091.7 | 1763.9 | Dome Lamps, 12V | Click Here | Image Link | 2022-09-30 | 7600 | 2.6 |
| Yish | YISH | YISH | +105 | Dome Lamps, 12V | Click Here | Image Link | 2022-06-02 | 800 | 25 | ||
| General Narrow Band Filters | |||||||||||
| [OIII] | OIII | OIII | +205 | 5001.7 | 25.5 | Dome Lamps, 12V | Click Here | ----- | ----- | ||
| Hα-On | HALPHAON | Ha-on | +155 | 6564.9 | 30.1 | Dome Lamps, 12V | Click Here | Image Link | 2019-05-26 | 210 | 97 |
| Hα-Off | HALPHAOFF | Ha-off | +155 | 6459.1 | 114.6 | Dome Lamps, 12V | Click Here | ----- | ----- | ||
| Wolf-Rayet Filters | |||||||||||
| WC | WR-WC | WC | +165 | 4660.4 | 49.5 | Dome Lamps, 12V | Click Here | Image Link | 2021-08-10 | 180 | 110 |
| WN | WR-WN | WN | +160 | 4690.9 | 49.6 | Dome Lamps, 12V | Click Here | Image Link | 2021-08-10 | 180 | 110 |
| CT | WR-CT | CT | +170 | 4756.1 | 54.6 | Dome Lamps, 12V | Click Here | Image Link | 2021-08-10 | 210 | 96 |
| Comet Filters (Note: These filters are 4 inches round and suffer some vignetting on LMI) | |||||||||||
| Ultraviolet Continuum | UC | UC | +175 | 3449 | 79 | Photo Floods | Click Here | Image Link | 2022-02-02 | 230 | 86 |
| Blue Continuum | BC | BC | +175 | 4453 | 61 | Photo Floods | Click Here | Image Link | 2022-02-02 | 5200 | 3.9 |
| Green Continuum | GC | GC | +175 | 5259 | 56 | Dome Lamps, 12V | Click Here | ----- | ----- | ||
| Red Continuum | RC | RC | +175 | 7133 | 58 | Dome Lamps, 12V | Click Here | Image Link | 2022-06-09 | 310 | 65 |
| C2 | C2 | C2 | +175 | 5135 | 119 | Dome Lamps, 12V | Click Here | Image Link | 2022-05-27 | 360 | 56 |
| C3 | C3 | C3 | +175 | 4063 | 58 | Photo Floods | Click Here | Image Link | 2022-02-02 | ----- | ----- |
| CN | CN | CN | +175 | 3869 | 56 | Photo Floods | Click Here | Image Link | 2022-02-02 | 1200 | 16 |
| CO+ | CO+ | CO+ | +175 | 4266 | 64 | Photo Floods | Click Here | ----- | ----- | ||
| H2O+ | H2O+ | H2O+ | +175 | 7028 | 164 | Dome Lamps, 12V | Click Here | Image Link | 2021-12-02 | 850 | 24 |
| OH | OH | OH | +175 | 3097 | 58 | Photo Floods | Click Here | Image Link | 2022-04-05 | ----- | ----- |
| NH | NH | NH | +175 | 3361 | 54 | Photo Floods | Click Here | ----- | ----- | ||
| Assorted Other Filters (inquire if you want to use, as they may not be readily available) | |||||||||||
| W032 | W032 | W032 | +176 | 5300 | ----- | ----- | |||||
| 5027 | 5027 | 5027 | +130 | 5027 | ----- | ----- | |||||
| K1593 | K1593 | K1593 | +194 | 5010 | ----- | ----- | |||||
