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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
kp1309b KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1309b
kp1309c KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1309c
U k1001 Nicholas U. Mayall 4-meter Telescope Mosaic U k1001 U k1001
Bw NDWFS k1025 Nicholas U. Mayall 4-meter Telescope Mosaic Bw NDWFS k1025 Bw NDWFS k1025
815 815_v2 k1046 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v2 k1046 815 815_v2 k1046
493 BATC k1055 ** Nicholas U. Mayall 4-meter Telescope Mosaic 493 BATC k1055 ** 493 BATC k1055 **
848 BATC k1063 ** Nicholas U. Mayall 4-meter Telescope Mosaic 848 BATC k1063 ** 848 BATC k1063 **
James Rhoads Low-background J Filter Nicholas U. Mayall 4-meter Telescope Flamingos James Rhoads Low-background J Filter Cuton: 1.050 - Cutoff: 1.385
K4748 Gemini South Phoenix K4748 Start (cm-1 μm): 4704=2.126 - Stop (cm-1 μm): 4803=2.082 - Echelle order 27
SDSS g WIYN 3.5-meter Telescope Hydra SDSS g SDSS g SIZE: 4x4
SDSS r WIYN 3.5-meter Telescope Hydra SDSS r SIZE: 4x4
Kron-Cousins Rc 6410.00 SOAR Telescope Goodman Goodman Spectrograph circular 4 inch diameter filters - Central wavelength = 641
KPNO-V SMARTS 1.3-meter Telescope ANDICAM KPNO-V KPNO-V CCD Filter
Br gamma 21648.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,1592 - 2,1738
GG455 BLANK Hydra, Hydra Schott Glass GG455 Schott Glass Filters. Purpose: Longpass > ~455nm Thickness: 2mm
kp1309b KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1309b
kp1309c KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1309c
kp1219 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1219
U k1001 Nicholas U. Mayall 4-meter Telescope Mosaic U k1001
M Washington k1007 Nicholas U. Mayall 4-meter Telescope Mosaic M Washington k1007 M Washington k1007 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=5168A, FWHM=1126A, PEAK TRANSMISSION=86.5%.
Ooff OIII+30nm k1015 Nicholas U. Mayall 4-meter Telescope Mosaic Ooff OIII+30nm k1015 Ooff OIII+30nm k1015 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=5298.69A FWHM=240.20A PEAK TRANSMISSION=91.73%
Bw NDWFS k1025 Nicholas U. Mayall 4-meter Telescope Mosaic Bw NDWFS k1025 Bw NDWFS k1025 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=4091A, FWHM=1250A, PEAK TRANSMISSION=91.7%.
815 815_v2 k1046 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v2 k1046 A comparison of this filter with the older version of this filter (k1026):
527 BATC k1056 ** Nicholas U. Mayall 4-meter Telescope Mosaic 527 BATC k1056 ** 527 BATC k1056 ** 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.
918 BATC k1064 ** Nicholas U. Mayall 4-meter Telescope Mosaic 918 BATC k1064 ** 918 BATC k1064 ** 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.
M1930 Gemini South Phoenix M1930 Start (cm-1 μm): 1890=5.291 - Stop (cm-1 μm): 1970=5.076 - Echelle order 11
H6073 Gemini South Phoenix H6073 Start (cm-1 μm): 6017=1.662 - Stop (cm-1 μm): 6129=1.632 - Echelle order 34
GG-385 3850.00 SOAR Telescope Goodman Goodman Spectrograph circular 4 inch diameter filters - Cutoff wavelength: < 385
KPNO-I SMARTS 1.3-meter Telescope ANDICAM KPNO-I KPNO-I CCD Filter
He II 21911.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Narrow Band Filters. Wavelengths @80% (micron): 2,1845 - 2,1976
SDSS i 7734/50 SMARTS Consortium: 0.9-meter Telescope BLANK Size: 4x4
GG495 BLANK Hydra, Hydra Schott Glass GG495 Schott Glass Filters. Purpose: Longpass > ~495nm Thickness: 2mm
kp1217 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1217
kp1345 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1345
815 815_v2 k1046 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v2 k1046 815 815_v2 k1046 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= 8109.85A FWHM= 68.62A PEAK TRANSMISSION= 81.42% at 8122A
527 BATC k1056 ** Nicholas U. Mayall 4-meter Telescope Mosaic 527 BATC k1056 ** 527 BATC k1056 **
918 BATC k1064 ** Nicholas U. Mayall 4-meter Telescope Mosaic 918 BATC k1064 ** 918 BATC k1064 **
M2030 Gemini South Phoenix M2030 Start (cm-1 μm): 1980=5.050 - Stop (cm-1 μm): 2080=4.808 - Echelle order 11
H6420 Gemini South Phoenix H6420 Start (cm-1 μm): 6377=1.568 - Stop (cm-1 μm): 6464=1.547 - Echelle order 36
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
kp798 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp798
kp7630b KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp7630b
kp1493 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1493
kp920 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp920
Washington C KPNO 2.1-meter Telescope KPNO 4-Inch Filters Washington C Washington C
B Harris k1002 Nicholas U. Mayall 4-meter Telescope Mosaic B Harris k1002 B Harris k1002
Showing 51 - 100 of 1258

Updated on June 27, 2022, 11:32 am