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
kp1530 2071.00 8274.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1530 harris I - omega
I Harris 2077.00 8333.00 WIYN 0.9-meter Telescope S2KB I Harris I Harris 11-2001
kp370 2088.00 5712.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp370 coated quartz blocking filter
kp370 2088.00 5712.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp370 coated quartz blocking filter
kp1268_13 2093.00 8320.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1268_13 mould system
Mould I 2111.00 8268.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Mould I Mould I made with Mould parameters
VR Bernstein k1040 *** Retired! 2119.56 5944.95 Nicholas U. Mayall 4-meter Telescope Mosaic VR Bernstein k1040 *** Retired! VR Bernstein k1040 *** Retired! NOTE: This filter was damaged in June 2011 and is retired. 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.
VR k1039 *** New! 2216.00 5940.00 Nicholas U. Mayall 4-meter Telescope Mosaic VR k1039 *** New! VR k1039 *** New! NOTE: This filter is a replacement for k1040. 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.
SAMI-z SDSS 2328.00 9500.00 SOAR Telescope SAM, SAMI SAMI-z SDSS
BG-39 2359.51 4773.35 KPNO 2.1-meter Telescope GoldCam BG-39 BG-39 Beware of red leak. Bandpass Filter.
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
BG-39 2390.00 4679.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters BG-39 BG-39
Wide VR filter VR 2410.00 6000.00 SOAR Telescope Goodman, SOI Wide VR filter VR 4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
MPRIME 2411.00 46800.00 Gemini North NIRI MPRIME MPRIME
K_BLUE 2421.00 20600.00 Gemini South FLAMINGOS2 K_BLUE K_BLUE
BG-39 2424.35 4736.60 Nicholas U. Mayall 4-meter Telescope RC Spectrograph BG-39 BG-39 Bandpass Filter.
HST f814w 2509.00 8289.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters HST f814w HST f814w
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.
K_RED 2650.00 23100.00 Gemini South FLAMINGOS2 K_RED K_RED
BG-38-1 2657.20 4896.52 KPNO 2.1-meter Telescope GoldCam BG-38-1 BG-38-1 Beware of red leak. Bandpass Filter.
BG-38-1 2657.20 4896.52 KPNO 2.1-meter Telescope GoldCam BG-38-1 BG-38-1 Beware of red leak. Bandpass Filter.
BG-38-2 2657.20 4896.52 KPNO 2.1-meter Telescope GoldCam BG-38-2 BG-38-2 Beware of red leak. Bandpass Filter.
BG-38 2793.59 4879.23 Nicholas U. Mayall 4-meter Telescope RC Spectrograph BG-38 BG-38 Bandpass Filter.
H_G1103 2855.00 16350.00 Gemini South GSAOI H_G1103 H_G1103
H 2870.00 16320.00 SOAR Telescope SPARTAN IR
H 2902.00 16310.00 Gemini South FLAMINGOS2 H H
ri_G0349 2910.00 7050.00 Gemini North GMOS-N ri_G0349 ri_G0349
H 2910.00 16500.00 Gemini North NIRI H H
BG38 2950.00 5010.00 Nicholas U. Mayall 4-meter Telescope KOSMOS BG38 BG38 Bandpass filter. For engineering purposes, not available to users.
KSHORT 2965.00 21500.00 Gemini North NIRI KSHORT KSHORT
K 3070.00 21480.00 SOAR Telescope SPARTAN IR
Kshort_G1105 3107.00 21500.00 Gemini South GSAOI Kshort_G1105 Kshort_G1105
kp1357 3141.00 8816.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter saao 3mm RG-9 4mm quartz
K 3174.00 22000.00 Gemini North NIRI K K
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
kp182 3208.00 8875.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter bessell system revised k p I
K_G1106 3240.00 22000.00 Gemini South GSAOI K_G1106 K_G1106
K_SHORT 3299.00 21570.00 Gemini South FLAMINGOS2 K_SHORT K_SHORT
ORDER_4 3352.00 16533.00 Gemini North GNIRS ORDER_4 ORDER_4
KPRIME 3361.00 21200.00 Gemini North NIRI KPRIME KPRIME
K 3376.00 22060.00 Gemini North GNIRS K K
Kprime_G1104 3406.00 21200.00 Gemini South GSAOI Kprime_G1104 Kprime_G1104
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)
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)
wh Bk-7 c6016 5000.00 6500.00 Nicholas U. Mayall 4-meter Telescope Mosaic
S8612 5100.00 4750.00 SOAR Telescope Goodman S8612 S8612 Goodman Spectrograph circular 4 inch diameter filters - Wavelength range: ~330-620

Updated on June 27, 2022, 11:32 am