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Filter Information

Plots and data included with most lists.

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
GG-455 4550.00 SOAR Telescope Goodman Goodman Spectrograph circular 4 inch diameter filters - Cutoff wavelength: < 455
J-band SMARTS 1.3-meter Telescope ANDICAM J-band J-band Infrared Filer
H2 & continuum 2.25 mu 22570.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,2428 - 2,2618
B set# 2 Schmidt 4200/1050 SMARTS Consortium: 0.9-meter Telescope BLANK Size: 4x4
OG515 BLANK Hydra, Hydra Schott Glass OG515 Schott Glass Filters. Purpose: Longpass > ~515nm Thickness: 2mm
kp1113 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1113
B Harris k1002 Nicholas U. Mayall 4-meter Telescope Mosaic B Harris k1002
815 815_v1 k1026 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v1 k1026 A comparison of this filter with the newer version of this filter (k1046):
823 823_v2 k1047 Nicholas U. Mayall 4-meter Telescope Mosaic 823 823_v2 k1047 823 823_v2 k1047
579 BATC k1057 ** Nicholas U. Mayall 4-meter Telescope Mosaic 579 BATC k1057 ** 579 BATC k1057 **
973 BATC k1065 ** Nicholas U. Mayall 4-meter Telescope Mosaic 973 BATC k1065 ** 973 BATC k1065 **
L2462 Gemini South Phoenix L2462 Start (cm-1 μm): 2410=4.149 - Stop (cm-1 μm): 2495=4.008 - Echelle order 14
J7799 Gemini South Phoenix J7799 Start (cm-1 μm): 7750=1.290 - Stop (cm-1 μm): 7865=1.271 - Echelle order 44
SDSS i WIYN 3.5-meter Telescope Hydra SDSS i SIZE: 4x4
GG-495 4950.00 SOAR Telescope Goodman Goodman Spectrograph circular 4 inch diameter filters - Cutoff wavelength: < 495
H-band SMARTS 1.3-meter Telescope ANDICAM H-band H-band Infrared Filer
SDSS u 3513/628 SMARTS Consortium: 0.9-meter Telescope BLANK Size: 4X4
OG570 BLANK Hydra, Hydra Schott Glass OG570 Schott Glass Filters. Purpose: Longpass > ~570nm Thickness: 2mm
kp1210 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1210
kp1434 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1434
kp247 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp247
kp1309a KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1309a
kp1114 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1114
kp1524 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1524
ha H-alpha k1009 Nicholas U. Mayall 4-meter Telescope Mosaic ha H-alpha k1009 ha H-alpha k1009 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=6550A, FWHM=80A, PEAK TRANSMISSION=93.7%.
815 815_v1 k1026 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v1 k1026
VR Bernstein k1040 *** Retired! Nicholas U. Mayall 4-meter Telescope Mosaic VR Bernstein k1040 *** Retired! VR Bernstein k1040 *** Retired! 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=5934A, FWHM=2079A, PEAK TRANSMISSION=95.3%.
823 823_v2 k1047 Nicholas U. Mayall 4-meter Telescope Mosaic 823 823_v2 k1047 A comparison of this filter with the newer version (k1047):
607 BATC k1058 ** Nicholas U. Mayall 4-meter Telescope Mosaic 607 BATC k1058 ** 607 BATC k1058 ** 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.
L2734 Gemini South Phoenix L2734 Start (cm-1 μm): 2680=3.731 - Stop (cm-1 μm): 2770=3.610 - Echelle order 15
J8265 Gemini South Phoenix J8265 Start (cm-1 μm): 8243=1.213 - Stop (cm-1 μm): 8360=1.196 - Echelle order 47. Currently not installed in Phoenix.
B set# 2 Schmidt WIYN 3.5-meter Telescope Hydra B set# 2 Schmidt SIZE: 4x4
R set #2 Schmidt WIYN 3.5-meter Telescope Hydra R set #2 Schmidt SIZE: 4x4
OG-590 5900.00 SOAR Telescope Goodman Goodman Spectrograph circular 4 inch diameter filters - Cutoff wavelength: < 590
K-band SMARTS 1.3-meter Telescope ANDICAM K-band K-band Infrared Filer
SDSS g 4759/1430 SMARTS Consortium: 0.9-meter Telescope BLANK Size: 4x4
SDSS r 6265/1483 SMARTS Consortium: 0.9-meter Telescope BLANK Size: 4x4
OG590 BLANK Hydra, Hydra Schott Glass OG590 Schott Glass Filters. Purpose: Longpass > ~590nm Thickness: 2mm
kp1276 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1276
kp1309a KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1309a
kp1492 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1492
Gunn v KPNO 2.1-meter Telescope KPNO 4-Inch Filters Gunn v Gunn v
V Harris k1003 Nicholas U. Mayall 4-meter Telescope Mosaic V Harris k1003 V Harris k1003
815 815_v1 k1026 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v1 k1026 815 815_v1 k1026 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) and the CTIO 4m (f/2.9). At the KPNO 4m f/3.1 the properties of this filter are: CWL=8087A, FWHM=71A, PEAK TRANSMISSION=93%.
823 823_v2 k1047 Nicholas U. Mayall 4-meter Telescope Mosaic 823 823_v2 k1047 823 823_v2 k1047 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= 8193.49A FWHM= 68.30A PEAK TRANSMISSION= 89.71% at 8182A
607 BATC k1058 ** Nicholas U. Mayall 4-meter Telescope Mosaic 607 BATC k1058 ** 607 BATC k1058 **
L2870 Gemini South Phoenix L2870 Start (cm-1 μm): 2820=3.545 - Stop (cm-1 μm): 2910=3.436 - Echelle order 16
J9232 Gemini South Phoenix J9232 Start (cm-1 μm): 9183=1.089 - Stop (cm-1 μm): 9286=1.077 - Echelle order 52
SDSS u WIYN 3.5-meter Telescope Hydra SIZE: 4X4
Ca H&K line filter WIYN 3.5-meter Telescope Hydra Ca H&K line filter Ca H&K line filter SIZE: 4x4
Showing 101 - 150 of 1258

Updated on June 27, 2022, 11:32 am