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
SAMI-r SDSS 735.00 6250.00 SOAR Telescope SAM, SAMI SAMI-r SDSS
Wash set - t1 651.00 6251.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Wash set - t1 Wash set - t1
SDSS r' 1483.00 6265.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters SDSS r' SDSS r' Sloan Digital Sky Survey set
SDSS r' 1779.00 6271.00 SOAR Telescope Goodman, SOI SDSS r' SDSS r' 4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
r SDSS c6018 1468.00 6287.00 Nicholas U. Mayall 4-meter Telescope Mosaic r SDSS c6018 r SDSS c6018 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.
Bessell R 1922.00 6289.00 SOAR Telescope Goodman, SOI Bessell R Bessell R 4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
r SDSS k1018 1475.17 6292.28 Nicholas U. Mayall 4-meter Telescope Mosaic r SDSS k1018 r SDSS k1018 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.
kp946 11.00 6298.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp946
r_G0303 1364.00 6300.00 Gemini North GMOS-N r_G0303 r_G0303
r_G0326 1364.00 6300.00 Gemini South GMOS-S r_G0326 r_G0326
kp1414 16.00 6301.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter backup for kp794-janos
kp1521 14.00 6305.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1521 replaces 1414
kp1521 14.00 6305.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1521 replaces 1415
kp279 70.00 6308.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp279
kp279 70.00 6308.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp279
kp1308d 1006.00 6340.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter nearly mould R-omega
Hydra EC#20 167.00 6356.00 BLANK Hydra, Hydra Echelle Mode Hydra EC#20 Order: 15.25
Hydra EC#7 601.00 6371.00 BLANK Hydra, Hydra Echelle Mode Hydra EC#7 Order: 8.75
DECam r 1276.20 6371.30 Víctor M. Blanco 4-meter Telescope Dark Energy Camera DECam r DECam r
rd DECam k1036 *** New! 1426.90 6395.60 Nicholas U. Mayall 4-meter Telescope Mosaic rd DECam k1036 *** New! rd DECam k1036 *** 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.
kp1308c 1132.00 6400.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter nearly mould R-omega
R Tek set #2 1450.00 6400.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3
R Tek set #2 6400/1450 1450.00 6400.00 SMARTS Consortium: 0.9-meter Telescope BLANK R Tek set #2 6400/1450 Size: 3x3
R Tek set #2 1450.00 6400.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3
R Harris 1509.00 6404.00 WIYN 0.9-meter Telescope S2KB R Harris R Harris 04-2003
Kron-Cousins Rc 6410.00 SOAR Telescope Goodman Goodman Spectrograph circular 4 inch diameter filters - Central wavelength = 641
R Tek set#3 1470.00 6410.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3-5.23mm.
R Tek set#3 6410/1470 1470.00 6410.00 SMARTS Consortium: 0.9-meter Telescope BLANK R Tek set#3 6410/1470 Size: 3x3 Thick: 5.23
R Tek set#3 1470.00 6410.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3-5.23mm.
kp808 88.00 6411.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters kp808 kp808 Minor coating deterioration
R Tek set#1 1500.00 6425.00 WIYN 3.5-meter Telescope Hydra R Tek set#1 SIZE: 3x3-5.25mm.
Harris R 1541.00 6425.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Harris R Harris R Not available
R Tek set#1 642571500 1500.00 6425.00 SMARTS Consortium: 0.9-meter Telescope BLANK R Tek set#1 642571500 Size: 3x3 Thick: 5.25
R Tek set#1 1500.00 6425.00 WIYN 3.5-meter Telescope Hydra R Tek set#1 SIZE: 3x3-5.25mm.
kp1243 768.00 6431.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1243 video camera
R harris set#1 4mts 1525.00 6437.00 WIYN 3.5-meter Telescope Hydra R harris set#1 4mts SIZE: 4x4-5.22mm.
kp1501 1450.00 6437.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1501 arlo's ccd harris set
R harris set#1 4mts 6437/1525 1525.00 6437.00 SMARTS Consortium: 0.9-meter Telescope BLANK R harris set#1 4mts 6437/1525 Size: 4x4 Thick: 5.22
R harris set#1 4mts 1525.00 6437.00 WIYN 3.5-meter Telescope Hydra R harris set#1 4mts SIZE: 4x4-5.22mm.
R Harris c6004 1510.00 6440.00 Nicholas U. Mayall 4-meter Telescope Mosaic R Harris c6004 R Harris c6004 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.
kp1343 1190.00 6442.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter mould R36 spare R
kp1406_1 1451.00 6444.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1406_1 Harris set og570,kg3 -- CHIPPED
kp1463 1498.00 6447.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1463 harris set R -- BROKEN
kp1267_13 1186.00 6450.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1267_13 mould system R
kp1267_12 1186.00 6450.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1267_12 mould system R
Harris R 1472.00 6458.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Not available
Harris R 1472.00 6458.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Harris R Harris R 2.1 meter set
kp1425_3 1443.00 6466.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1425_3 harris set R
kp1267_11 1231.00 6470.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1267_11 mould system R
kp1267_12 1231.00 6470.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1267_12 mould system R

Updated on June 27, 2022, 11:32 am