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.
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NOIRLab Filter Database

Filter FWHM (Å) CWL (Å) Telescope Instrument Plot Data Comments
SDSS z' 4842.00 10094.00 SOAR Telescope Goodman, SOI SDSS z' SDSS z' 4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
RG1000 0.00 10000.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
kp1219 108.00 9998.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1219
DECam Y 674.50 9886.30 Víctor M. Blanco 4-meter Telescope Dark Energy Camera DECam Y DECam Y
kp817 155.00 9685.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp817
DECam N964 95.00 9640.00 Víctor M. Blanco 4-meter Telescope Dark Energy Camera DECam N964
kp816 39.00 9561.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp816
kp1017 139.00 9553.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1017 replaced 8-13-86
[S III] 27.00 9545.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters [S III] [S III] George Jacoby's filter
kp1001 443.00 9540.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1001
SAMI-z SDSS 2328.00 9500.00 SOAR Telescope SAM, SAMI SAMI-z SDSS
SDSS_z 2364.00 9468.00 Gemini South ZORRO SDSS_z SDSS_z not convolved with dichroic
SDSS_z 2364.00 9468.00 Gemini North ALOPEKE SDSS_z SDSS_z not convolved with dichroic
z SDSS k1020 *** Retired! 2000.00 9400.00 Nicholas U. Mayall 4-meter Telescope Mosaic z SDSS k1020 *** Retired! z SDSS k1020 *** Retired! NOTE: This filter was damaged in June 2011 and is retired. The CTIO SDSS z' filter (c6020) can be requested as a replacement, but it's availability will depend on demand at CTIO. 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.
z SDSS c6020 2000.00 9400.00 Nicholas U. Mayall 4-meter Telescope Mosaic z SDSS c6020 z SDSS c6020 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.
zd DECam k1038 *** New! 1467.00 9280.00 Nicholas U. Mayall 4-meter Telescope Mosaic zd DECam k1038 *** New! zd DECam k1038 *** New! 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.
918R 918R_v1 k1028 81.22 9210.96 Nicholas U. Mayall 4-meter Telescope Mosaic 918R 918R_v1 k1028 918R 918R_v1 k1028 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.
DS920_G0312 190.00 9200.00 Gemini North GMOS-N DS920_G0312 DS920_G0312
kp1374 81.00 9183.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1374 vesa - omega
DECam z 1289.30 9157.90 Víctor M. Blanco 4-meter Telescope Dark Energy Camera DECam z DECam z
kp273 46.00 9073.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp273 s III
kp1218 117.00 8894.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1218
kp182 3208.00 8875.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter bessell system revised k p I
kp33 3202.00 8865.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter bessell system k p rg-9
kp1114 3202.00 8865.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1114 bessell system k p rg-9
kp1357 3141.00 8816.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter saao 3mm RG-9 4mm quartz
It Tyson I c6025 *** Not Available 2000.00 8800.00 Nicholas U. Mayall 4-meter Telescope Mosaic It Tyson I c6025 *** Not Available It Tyson I c6025 *** Not Available 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.
Z_G0322 936.00 8760.00 Gemini North GMOS-N Z_G0322 Z_G0322
Z_G0322 936.00 8760.00 Gemini South GMOS-S Z_G0322 Z_G0322
Z_G0343 936.00 8760.00 Gemini South GMOS-S Z_G0343 Z_G0343
Bessell I 3914.00 8665.00 SOAR Telescope Goodman, SOI Bessell I Bessell I 4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
Osmer/Green 8600 690.00 8642.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Osmer/Green 8600 Osmer/Green 8600 Green 8600
CaT_G0309 1525.00 8600.00 Gemini North GMOS-N CaT_G0309 CaT_G0309
CaT_G0333 1525.00 8600.00 Gemini South GMOS-S CaT_G0333 CaT_G0333
Mike Irvin's Z 0.00 8525.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Mike Irvin's Z Mike Irvin's Z
Gunn z 0.00 8495.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Gunn z Gunn z RG850
kp22 110.00 8453.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter i r filter
I Harris 2077.00 8333.00 WIYN 0.9-meter Telescope S2KB I Harris I Harris 11-2001
SDSS z' 0.00 8325.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters SDSS z' SDSS z' Sloan Digital Sky Survey set
EO_832 403.00 8320.00 Gemini South ZORRO EO_832 EO_832 not convolved with dichroic
kp1268_13 2093.00 8320.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1268_13 mould system
EO_832 403.00 8320.00 Gemini North ALOPEKE EO_832 EO_832 not convolved with dichroic
kp1268_14 2007.00 8310.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1268_14 mould system
HST "I" 2560.00 8310.00 WIYN 3.5-meter Telescope Hydra HST "I" SIZE: 4x4-5.43mm.
HST "I" 8300/2500 2560.00 8310.00 SMARTS Consortium: 0.9-meter Telescope BLANK HST "I" 8300/2500 Size: 4x4 Thick: 5.43
HST "I" 2560.00 8310.00 WIYN 3.5-meter Telescope Hydra HST "I" SIZE: 4x4-5.43mm.
kp1268_11 1910.00 8300.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1268_11 mould system I
kp1532 2056.00 8295.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1532 harris I CCDPHOT - omega
kp402 1802.00 8291.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter mould system ocli
kp1314b 2006.00 8291.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1314b nearly mould I-omega

Updated on June 27, 2022, 11:32 am