1. Filters
  2. Filters

Filters

Filter FWHM (Å) CWL (Å) Telescope Instrument Plot Data Comments
Washington 51 174.00 5142.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Washington 51 Washington 51 Replaces KP1525
Washington - m 1012.00 5097.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Washington - m Washington - m Corning glass
Washington - c 1046.00 3979.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Washington - c Washington - c Corning glass
Wash set - t1 651.00 6251.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Wash set - t1 Wash set - t1
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.
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 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%.
V Tek set#2 5438/1026 1026.00 5438.00 SMARTS Consortium: 0.9-meter Telescope BLANK V Tek set#2 5438/1026 Size: 3x3
V Tek set#2 1026.00 5438.00 WIYN 3.5-meter Telescope Hydra V Tek set#2 SIZE: 3x3
V Tek set#2 1026.00 5438.00 WIYN 3.5-meter Telescope Hydra V Tek set#2 SIZE: 3x3
V Tek set #1 5475/1000 1000.00 5475.00 SMARTS Consortium: 0.9-meter Telescope BLANK V Tek set #1 5475/1000 Size: 3x3
V Tek set #1 1000.00 5475.00 WIYN 3.5-meter Telescope Hydra V Tek set #1 SIZE: 3x3
V Tek set #1 1000.00 5475.00 WIYN 3.5-meter Telescope Hydra V Tek set #1 SIZE: 3x3
v Stromgren 4x4 4118/146 146.00 4118.00 SMARTS Consortium: 0.9-meter Telescope BLANK v Stromgren 4x4 4118/146 v Stromgren 4x4 4118/146 Size: 4x4 Thick: 9.87
v Stromgren 4x4 146.00 4118.00 WIYN 3.5-meter Telescope Hydra v Stromgren 4x4 SIZE: 4x4-9.87mm.
v Stromgren 4x4 146.00 4118.00 WIYN 3.5-meter Telescope Hydra v Stromgren 4x4 SIZE: 4x4-9.87mm.
V set#2 Schmidt 5443/1060 SMARTS Consortium: 0.9-meter Telescope BLANK Size: 4x4
V set#2 Schmidt WIYN 3.5-meter Telescope Hydra V set#2 Schmidt SIZE: 4x4
V set#2 Schmidt WIYN 3.5-meter Telescope Hydra V set#2 Schmidt SIZE: 4x4
V Harris set#1 4mts 5443/1060 1060.00 5443.00 SMARTS Consortium: 0.9-meter Telescope BLANK V Harris set#1 4mts 5443/1060 Size: 4x4 Thick: 5.12
V Harris set#1 4mts 1060.00 5443.00 WIYN 3.5-meter Telescope Hydra SIZE: 4x4-5.12mm.
V Harris set#1 4mts 1060.00 5443.00 WIYN 3.5-meter Telescope Hydra SIZE: 4x4-5.12mm.
V Harris k1003 948.66 5386.76 Nicholas U. Mayall 4-meter Telescope Mosaic V Harris k1003 V Harris k1003 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.
V Harris k1003 Nicholas U. Mayall 4-meter Telescope Mosaic V Harris k1003 V Harris k1003
V Harris k1003 Nicholas U. Mayall 4-meter Telescope Mosaic V Harris k1003
V Harris c6026 940.00 5370.00 Nicholas U. Mayall 4-meter Telescope Mosaic V Harris c6026 V Harris c6026 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.
V Harris 936.00 5399.00 WIYN 0.9-meter Telescope S2KB V Harris V Harris 04-2003
Us solid U k1044 588.20 3651.81 Nicholas U. Mayall 4-meter Telescope Mosaic Us solid U k1044 Us solid U k1044 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.
Us solid U k1044 Nicholas U. Mayall 4-meter Telescope Mosaic Us solid U k1044 Us solid U k1044
Un Steidel k1041 562.72 3479.17 Nicholas U. Mayall 4-meter Telescope Mosaic Un Steidel k1041 Un Steidel k1041 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.
Un Steidel k1041 Nicholas U. Mayall 4-meter Telescope Mosaic Un Steidel k1041 Un Steidel k1041
Ud Dey custom U k1045 329.76 3485.23 Nicholas U. Mayall 4-meter Telescope Mosaic Ud Dey custom U k1045 Ud Dey custom U k1045 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.
Ud Dey custom U k1045 Nicholas U. Mayall 4-meter Telescope Mosaic Ud Dey custom U k1045 Ud Dey custom U k1045
u_G0332 630.00 3500.00 Gemini South GMOS-S u_G0332 u_G0332
u_G0308 630.00 3500.00 Gemini North GMOS-N u_G0308 u_G0308
u Stromgren 3530/280 280.00 3530.00 SMARTS Consortium: 0.9-meter Telescope BLANK u Stromgren 3530/280 u Stromgren 3530/280 Size: 4x4 Thick: 9.15
u Stromgren 280.00 3530.00 WIYN 3.5-meter Telescope Hydra SIZE: 4x4-9.15mm.
u Stromgren 280.00 3530.00 WIYN 3.5-meter Telescope Hydra SIZE: 4x4-9.15mm.
u SDSS c6022 400.00 3600.00 Nicholas U. Mayall 4-meter Telescope Mosaic u SDSS c6022 u SDSS c6022 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.
U liq. CuSO4 Tek set#3 36237605 605.00 3623.00 SMARTS Consortium: 0.9-meter Telescope BLANK U liq. CuSO4 Tek set#3 36237605 U liq. CuSO4 Tek set#3 36237605 Size: 3x3 Thick: 8.83
U liq. CuSO4 Tek set#3 605.00 3623.00 WIYN 3.5-meter Telescope Hydra U liq. CuSO4 Tek set#3 U liq. CuSO4 Tek set#3 SIZE: 3x3-8.83mm.
U liq. CuSO4 Tek set#3 605.00 3623.00 WIYN 3.5-meter Telescope Hydra U liq. CuSO4 Tek set#3 U liq. CuSO4 Tek set#3 SIZE: 3x3-8.83mm.
U liq. CuSO4 Tek set #2 3570/660 660.00 3570.00 SMARTS Consortium: 0.9-meter Telescope BLANK Size: 3x3
U liq. CuSO4 Tek set #2 660.00 3570.00 WIYN 3.5-meter Telescope Hydra U liq. CuSO4 Tek set #2 U liq. CuSO4 Tek set #2 SIZE: 3x3
U liq. CuSO4 Tek set #2 660.00 3570.00 WIYN 3.5-meter Telescope Hydra U liq. CuSO4 Tek set #2 U liq. CuSO4 Tek set #2 SIZE: 3x3
U liq. CuSO4 Tek set #1 3575/600 600.00 3575.00 SMARTS Consortium: 0.9-meter Telescope BLANK U liq. CuSO4 Tek set #1 3575/600 U liq. CuSO4 Tek set #1 3575/600 Size: 3x3 Thick: 9.09
U liq. CuSO4 Tek set #1 600.00 3575.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3-09.09mm.
U liq. CuSO4 Tek set #1 600.00 3575.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3-09.09mm.
U liq. CuSO4 set#1 4mts 3580/610 610.00 3580.00 SMARTS Consortium: 0.9-meter Telescope BLANK U liq. CuSO4 set#1 4mts 3580/610 U liq. CuSO4 set#1 4mts 3580/610 Size: 4x4 Thick: 9.32
U liq. CuSO4 set#1 4mts 610.00 3580.00 WIYN 3.5-meter Telescope Hydra U liq. CuSO4 set#1 4mts U liq. CuSO4 set#1 4mts SIZE: 4x4-9.32mm.
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