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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.)

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NOIRLab Filter Database

Filter FWHM (Å) CWL (Å) Telescope Instrument Plot Data Comments
D51 DDO 51 k1008 Nicholas U. Mayall 4-meter Telescope Mosaic D51 DDO 51 k1008 D51 DDO 51 k1008 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=5132A FWHM=161A PEAK TRANSMISSION=85.1%
815 815_v1 k1026 Nicholas U. Mayall 4-meter Telescope Mosaic 815 815_v1 k1026 815 815_v1 k1026
579 BATC k1057 ** Nicholas U. Mayall 4-meter Telescope Mosaic 579 BATC k1057 ** 579 BATC k1057 ** 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.
973 BATC k1065 ** Nicholas U. Mayall 4-meter Telescope Mosaic 973 BATC k1065 ** 973 BATC k1065 ** 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.
M2150 Gemini South Phoenix M2150 Start (cm-1 μm): 2105=4.751 - Stop (cm-1 μm): 2190=4.566 - Echelle order 12
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
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
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
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
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
SDSS z WIYN 3.5-meter Telescope Hydra SDSS z SIZE: 4x4
YALO B SMARTS 1.3-meter Telescope ANDICAM YALO B YALO B Legacy Filter
RG610 BLANK Hydra, Hydra Schott Glass RG610 Schott Glass Filters. Purpose: Longpass > ~610nm 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%.
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Updated on June 27, 2022, 11:32 am