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
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
Bessell B 1269.00 4326.00 SOAR Telescope Goodman, SOI Bessell B Bessell B 4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
kp1308b 1272.00 6495.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter nearly mould R-omega
kp1308a 1272.00 6505.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter nearly mould R-omega
Bw NDWFS k1025 1275.21 4110.78 Nicholas U. Mayall 4-meter Telescope Mosaic Bw NDWFS k1025 Bw NDWFS k1025 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. Note: This filter was called the NDWFS UB filter in 1997-1998.
DECam r 1276.20 6371.30 Víctor M. Blanco 4-meter Telescope Dark Energy Camera DECam r DECam r
DECam i 1281.00 7774.20 Víctor M. Blanco 4-meter Telescope Dark Energy Camera DECam i DECam i
Gunn I 1289.00 8156.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Gunn I Gunn I
DECam z 1289.30 9157.90 Víctor M. Blanco 4-meter Telescope Dark Energy Camera DECam z DECam z
kp1267_14 1302.00 6490.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1267_14 mould system
H + K blocker 1320.00 2030.00 Nicholas U. Mayall 4-meter Telescope NEWFIRM H + K blocker Use with 3101, 3102
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
kp1210 1376.00 4585.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1210
g SDSS k1017 1395.73 4750.58 Nicholas U. Mayall 4-meter Telescope Mosaic g SDSS k1017 g SDSS k1017 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.
BG-1 1411.60 4095.26 KPNO 2.1-meter Telescope GoldCam BG-1 BG-1 Beware of red leak. Bandpass Filter.
BG-12 1411.60 4095.26 KPNO 2.1-meter Telescope GoldCam BG-12 BG-12 Beware of red leak. Bandpass Filter.
I kc Tek set#2 1415.00 8118.00 WIYN 3.5-meter Telescope Hydra I kc Tek set#2 SIZE: 3X3
I kc Tek set#2 8118/1415 1415.00 8118.00 SMARTS Consortium: 0.9-meter Telescope BLANK I kc Tek set#2 8118/1415 Size: 3X3
I kc Tek set#2 1415.00 8118.00 WIYN 3.5-meter Telescope Hydra I kc Tek set#2 SIZE: 3X3
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.
SDSS g' 1430.00 4759.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters SDSS g' SDSS g' Sloan Digital Sky Survey set
i_G0302 1440.00 7800.00 Gemini North GMOS-N i_G0302 i_G0302
i_G0327 1440.00 7800.00 Gemini South GMOS-S i_G0327 i_G0327
kp1425_3 1443.00 6466.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1425_3 harris set R
kp1418_2 1444.00 6471.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1418_2 harris set r
SDSS_r 1446.00 6198.00 Gemini South ZORRO SDSS_r SDSS_r not convolved with dichroic
SDSS_r 1446.00 6198.00 Gemini North ALOPEKE SDSS_r SDSS_r not convolved with dichroic
J_LOW 1447.00 11220.00 Gemini South FLAMINGOS2 J_LOW J_LOW
R Tek set #2 1450.00 6400.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3
kp1501 1450.00 6437.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1501 arlo's ccd harris set
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
kp1406_1 1451.00 6444.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1406_1 Harris set og570,kg3 -- CHIPPED
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.
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.
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.
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
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.
SDSS_i 1476.00 7650.00 Gemini South ZORRO SDSS_i SDSS_i not convolved with dichroic
SDSS_i 1476.00 7650.00 Gemini North ALOPEKE SDSS_i SDSS_i not convolved with dichroic
SDSS r' 1483.00 6265.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters SDSS r' SDSS r' Sloan Digital Sky Survey set
I kc Tek set#3 1485.00 8067.00 WIYN 3.5-meter Telescope Hydra I kc Tek set#3 SIZE: 3x3-6.11mm.
I kc Tek set#3 8067/1485 1485.00 8067.00 SMARTS Consortium: 0.9-meter Telescope BLANK I kc Tek set#3 8067/1485 Size: 3x3 Thick: 6.11
I kc Tek set#3 1485.00 8067.00 WIYN 3.5-meter Telescope Hydra I kc Tek set#3 SIZE: 3x3-6.11mm.
HC 1498.00 32950.00 Gemini North NIRI HC HC needs to be updated

Updated on June 27, 2022, 11:32 am