Filter Information
Plots and data included with most lists.
- Important Filter Information - updated Mar. 13, 2013
- Filters for the Mosaic Imager
- KPNO 4-Inch Filter List - includes Hale-Bopp comet filters.
- KPNO 2-Inch Filter List
- RC Spectrograph Order Separation Filters
- Echelle Spectrograph Filters Pre-slit and Post-slit
- Phoenix Order Sorting Filters
- NEWFIRM Filter Information
- FLAMINGOS Filters
- KOSMOS Filters
- GoldCam Spectrograph Order Separation Filters
- WIYN Imager Filter List 4 x 4 inch
- ODI Filter Information 428 x 445 mm
- WIYN Bench Spectrograph Filter List
- WHIRC Filters
- WIYN 0.9 Meter Filter Information
Instructions for Fast Beam Simulations
Glass Filter Spectral Transmission Curves from Schott Catalog (reproduced with permission from Schott Glass Technologies, Inc.)
Filter Loan Request Form - PDF fill-in form (if using Adobe Reader). Or, use the MS-Word version.
{ Please fill out and send the signed form via either email (richard.joyce@noirlab.edu), or mail (950 North Cherry Avenue # Tucson, AZ 85719) }
NOIRLab Filter Database
Filter | FWHM (Å) | CWL (Å) | Telescope | Instrument | Plot | Data | Comments |
---|---|---|---|---|---|---|---|
kp1267_12 | 1186.00 | 6450.00 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1267_12 | mould system R | |
kp1267_14 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1267_14 | ||||
kp1113 | 1507.00 | 6524.00 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1113 | bessell system k p | |
kp1276a | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1276a | ||||
kp1346 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1346 | ||||
kp373 | 1051.00 | 6757.00 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | gunn set kp coated rg-630 | ||
kp7336b | 78.00 | 7333.00 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | halpha set combined | ||
kp1342a | 1539.00 | 8079.00 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1342a | gunn set combined A `i' from sp tel | |
kp1309d | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1309d | ||||
kp1314b | 2006.00 | 8291.00 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1314b | nearly mould I-omega | |
kp1001 | KPNO 2.1-meter Telescope | KPNO 2-Inch Filter | kp1001 | ||||
Stromgren u | 278.00 | 3537.00 | KPNO 2.1-meter Telescope | KPNO 4-Inch Filters | Stromgren u | Stromgren u | UG11+WG345 |
Harris B | 1069.00 | 4312.00 | KPNO 2.1-meter Telescope | KPNO 4-Inch Filters | Harris B | Harris B | new 7/98 |
Washington c48 | 200.00 | 4898.00 | KPNO 2.1-meter Telescope | KPNO 4-Inch Filters | Washington c48 | Washington c48 | Washington set, property of Doug Welch, McMaster Univ |
Harris set V- spare | 1015.00 | 5417.00 | KPNO 2.1-meter Telescope | KPNO 4-Inch Filters | Harris set V- spare | Harris set V- spare | |
Harris R | 1559.00 | 6531.00 | KPNO 2.1-meter Telescope | KPNO 4-Inch Filters | Harris R | Harris R | Not available |
H-alpha +31nm | 76.00 | 6877.00 | KPNO 2.1-meter Telescope | KPNO 4-Inch Filters | H-alpha +31nm | H-alpha +31nm | set1 |
Osmer/Green 8600 | 690.00 | 8642.00 | KPNO 2.1-meter Telescope | KPNO 4-Inch Filters | Osmer/Green 8600 | Osmer/Green 8600 | Green 8600 |
KP1497 | 77.75 | 6780.91 | Nicholas U. Mayall 4-meter Telescope | KOSMOS | KP1497 | KP1497 | KOSMOS Approved KPNO 4in. Filter. |
GG-375 | 0.00 | 0.00 | Nicholas U. Mayall 4-meter Telescope | RC Spectrograph | GG-375 | GG-375 | Sharp-Cut Filter. Cutoff filter: no transmission peak, FWHM is undefined. |
I Nearly-Mould k1005 | Nicholas U. Mayall 4-meter Telescope | Mosaic | I Nearly-Mould k1005 | ||||
ha16 H-alpha+16nm k1013 | Nicholas U. Mayall 4-meter Telescope | Mosaic | ha16 H-alpha+16nm k1013 | ha16 H-alpha+16nm k1013 | Below is a plot of the transmission of this filter when used at telescopes with differing focal ratios and central obscurations; the KPNO 4m (f/3.1), the CTIO 4m (f/2.9), and the WIYN 0.9m (f/7.9). At the KPNO 4m f/3.1 the properties of this filter are: CWL=6705A, FWHM=81A, PEAK TRANSMISSION=91.7%. | ||
wrc4 WR CIV k1024 | 41.79 | 5828.71 | Nicholas U. Mayall 4-meter Telescope | Mosaic | wrc4 WR CIV k1024 | wrc4 WR CIV k1024 | Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. See the plot at the bottom of the page. |
918R 918R_v1 k1028 | Nicholas U. Mayall 4-meter Telescope | Mosaic | 918R 918R_v1 k1028 | 918R 918R_v1 k1028 | |||
Ud Dey custom U k1045 | 329.76 | 3485.23 | Nicholas U. Mayall 4-meter Telescope | Mosaic | Ud Dey custom U k1045 | Ud Dey custom U k1045 | Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. |
454 BATC k1054 ** | Nicholas U. Mayall 4-meter Telescope | Mosaic | 454 BATC k1054 ** | 454 BATC k1054 ** | Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. | ||
802 BATC k1062 ** | Nicholas U. Mayall 4-meter Telescope | Mosaic | 802 BATC k1062 ** | 802 BATC k1062 ** | Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. | ||
ha H-alpha c6009 | 80.00 | 6563.00 | Nicholas U. Mayall 4-meter Telescope | Mosaic | ha H-alpha c6009 | ha H-alpha c6009 | Note: The central wavelength of CTIO Mosaic narrow band filters (actually all filters, but is very significant for narrow band filters) is shifted ~15A to the BLUE in the f/2.87 beam of the Blanco 4m + PFADC corrector as compared to the transmission measured in parallel light. The central wavelength quoted below is nominally for when the filter is used at PF, with the ~15A shift included. Furthermore, the filter transmission curve presented below shows the simulated filter transmission curve for the Blanco 4m + PFADC f/2.87 beam. |
OCLI K Band Filter | Nicholas U. Mayall 4-meter Telescope | Flamingos | OCLI K Band Filter | OCLI K Band Filter | Cuton: 2.028 - Cutoff: 2.365 | ||
J blocker | 533.00 | 1322.00 | Nicholas U. Mayall 4-meter Telescope | NEWFIRM | J blocker | Use with 2101, 2102 | |
1644 nm, 1644 | 17.20 | 1649.10 | Nicholas U. Mayall 4-meter Telescope | NEWFIRM | 1644 nm, 1644 | Use with 3302 | |
KP1498 | 74.96 | 6823.53 | Nicholas U. Mayall 4-meter Telescope | KOSMOS | KP1498 | KP1498 | KOSMOS Approved KPNO 4in. Filter. |
GG-385 | 0.00 | 0.00 | Nicholas U. Mayall 4-meter Telescope | RC Spectrograph | GG-385 | GG-385 | Sharp-Cut Filter. Cutoff filter: no transmission peak, FWHM is undefined. |
C Washington k1006 | 1034.00 | 3860.00 | Nicholas U. Mayall 4-meter Telescope | Mosaic | C Washington k1006 | C Washington k1006 | Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. See the plot at the bottom of the page. |
O3 OIII N2 k1014 * | 55.55 | 5024.90 | Nicholas U. Mayall 4-meter Telescope | Mosaic | O3 OIII N2 k1014 * | O3 OIII N2 k1014 * | Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. See the plot at the bottom of the page. |
wrc4 WR CIV k1024 | Nicholas U. Mayall 4-meter Telescope | Mosaic | wrc4 WR CIV k1024 | wrc4 WR CIV k1024 | Below is a plot of this filter as simulated in different f/ratio beams. At the KPNO 4m f/3.1 the properties of this filter are: CWL=5819A FWHM=42.17A PEAK TRANSMISSION=71.36% | ||
918R 918R_v1 k1028 | Nicholas U. Mayall 4-meter Telescope | Mosaic | 918R 918R_v1 k1028 | ||||
Ud Dey custom U k1045 | Nicholas U. Mayall 4-meter Telescope | Mosaic | Ud Dey custom U k1045 | Ud Dey custom U k1045 | |||
454 BATC k1054 ** | Nicholas U. Mayall 4-meter Telescope | Mosaic | 454 BATC k1054 ** | 454 BATC k1054 ** | |||
802 BATC k1062 ** | Nicholas U. Mayall 4-meter Telescope | Mosaic | 802 BATC k1062 ** | 802 BATC k1062 ** | |||
ha8 H-alpha+8nm c6011 | 80.00 | 6650.00 | Nicholas U. Mayall 4-meter Telescope | Mosaic | ha8 H-alpha+8nm c6011 | ha8 H-alpha+8nm c6011 | Note: The central wavelength of CTIO Mosaic narrow band filters (actually all filters, but is very significant for narrow band filters) is shifted ~15A to the BLUE in the f/2.87 beam of the Blanco 4m + PFADC corrector as compared to the transmission measured in parallel light. The central wavelength quoted below is nominally for when the filter is used at PF, with the ~15A shift included. Furthermore, the filter transmission curve presented below shows the simulated filter transmission curve for the Blanco 4m + PFADC f/2.87 beam. |
Janos JH Band Filter | Nicholas U. Mayall 4-meter Telescope | Flamingos | Janos JH Band Filter | Janos JH Band Filter | Cuton: 0.947 - Cutoff: 1.870 | ||
JX | 178.00 | 1246.00 | Nicholas U. Mayall 4-meter Telescope | NEWFIRM | JX | ||
1644 blocker [Fe II] blocker | 451.00 | 1593.00 | Nicholas U. Mayall 4-meter Telescope | NEWFIRM | 1644 blocker [Fe II] blocker | Use with 3301 | |
KP1517 | 76.36 | 6866.80 | Nicholas U. Mayall 4-meter Telescope | KOSMOS | KP1517 | KP1517 | KOSMOS Approved KPNO 4in. Filter. |
GG-400b | 0.00 | 0.00 | Nicholas U. Mayall 4-meter Telescope | RC Spectrograph | GG-400b | GG-400b | Sharp-Cut Filter. Cutoff filter: no transmission peak, FWHM is undefined. |
U k1001 | 630.71 | 3552.00 | Nicholas U. Mayall 4-meter Telescope | Mosaic | U k1001 | U k1001 | Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. |
C Washington k1006 | Nicholas U. Mayall 4-meter Telescope | Mosaic | C Washington k1006 | C Washington k1006 | Below is a plot of the transmission of this filter when used at telescopes with differing focal ratios and central obscurations; the KPNO 4m (f/3.1), the CTIO 4m (f/2.9), and the WIYN 0.9m (f/7.9). At the KPNO 4m f/3.1 the properties of this filter are: CWL=3892A, FWHM=1030A, PEAK TRANSMISSION=77.4%. | ||
O3 OIII N2 k1014 * | Nicholas U. Mayall 4-meter Telescope | Mosaic | O3 OIII N2 k1014 * | O3 OIII N2 k1014 * | Below is a plot of the transmission of this filter when used at telescopes with differing focal ratios and central obscurations; the KPNO 4m (f/3.1), the CTIO 4m (f/2.9), and the WIYN 0.9m (f/7.9). At the KPNO 4m f/3.1 the properties of this filter are: CWL=5006A, FWHM=56A, PEAK TRANSMISSION=76%. | ||
Bw NDWFS k1025 | 1275.21 | 4110.78 | Nicholas U. Mayall 4-meter Telescope | Mosaic | Bw NDWFS k1025 | Bw NDWFS k1025 | Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. See the plot at the bottom of the page. Note: This filter was called the NDWFS UB filter in 1997-1998. |
Pagination
Showing 1001-1050 of 1258
Updated on June 27, 2022, 11:32 am