1. Filters
  2. Filters

Filters

Filter FWHM (Å) CWL (Å) Telescope Instrument Plot Data Comments
SII 50.00 6744.00 WIYN 3.5-meter Telescope Hydra SII SIZE: 4x4-7.97mm.
OVIC_G0348 50.00 6790.00 Gemini South GMOS-S OVIC_G0348 OVIC_G0348
o2 OII c6012 50.00 3727.00 Nicholas U. Mayall 4-meter Telescope Mosaic o2 OII c6012 o2 OII c6012 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.
o3 OIII c6014 50.00 4990.00 Nicholas U. Mayall 4-meter Telescope Mosaic o3 OIII c6014 o3 OIII c6014 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.
SII 6738/50 50.00 6744.00 SMARTS Consortium: 0.9-meter Telescope BLANK SII 6738/50 Size: 4x4 Thick: 7.97
SII 50.00 6744.00 WIYN 3.5-meter Telescope Hydra SII SIZE: 4x4-7.97mm.
N/A 50.00 5027.00 WIYN 3.5-meter Telescope Hydra N/A SIZE: 4x4-7.83mm.
narrow [S II] (CTIO set) 50.00 6738.00 SOAR Telescope Goodman, SOI narrow [S II] (CTIO set) narrow [S II] (CTIO set) 4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
narrow [OIII] (CTIO set) 50.00 5019.00 SOAR Telescope Goodman, SOI 4 x 4 Inches square filters for imaging with the Goodman HTS or with SOI (SOI can also use 3x3 inch filters without vignetting)
5019/50 50.00 5027.00 SMARTS Consortium: 0.9-meter Telescope BLANK 5019/50 5019/50 Size: 4x4 Thick: 7.83
OVIC_G0346 50.00 6790.00 Gemini North GMOS-N OVIC_G0346 OVIC_G0346
N/A 50.00 5027.00 WIYN 3.5-meter Telescope Hydra N/A SIZE: 4x4-7.83mm.
wrhe2 WR HeII k1023 50.31 4702.60 Nicholas U. Mayall 4-meter Telescope Mosaic wrhe2 WR HeII k1023 wrhe2 WR HeII k1023 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.
OVI_G0347 51.00 6840.00 Gemini South GMOS-S OVI_G0347 OVI_G0347
kp1240 51.00 5326.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1240 video camera
kp524 51.00 4933.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp524 video camera
OVI_G0345 51.00 6840.00 Gemini North GMOS-N OVI_G0345 OVI_G0345
wr475 WR 475 k1022 51.27 4764.00 Nicholas U. Mayall 4-meter Telescope Mosaic wr475 WR 475 k1022 wr475 WR 475 k1022 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.
wrc3 WR CIII k1021 51.71 4666.15 Nicholas U. Mayall 4-meter Telescope Mosaic wrc3 WR CIII k1021 wrc3 WR CIII k1021 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.
kp674 52.00 5177.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp674 video camera
kp674 52.00 5177.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp674 video camera
kp523 52.00 4884.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp523 video camera
SII_G0317 52.00 6720.00 Gemini North GMOS-N SII_G0317 SII_G0317
kp523 52.00 4884.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp523 video camera
[O III] redshifted 53.00 5022.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters [O III] redshifted [O III] redshifted George Jacoby's filter
kp1389 53.00 5026.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters kp1389 kp1389 Andover
kp803 53.00 4754.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters kp803 kp803 Edge deterioration, replaced by KP1573 - Not available
kp583 54.00 4980.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp583 video camera
kp583 54.00 4980.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp583 video camera
SAMI-[NI] Narrow 55.00 5180.00 SOAR Telescope SAM, SAMI
kp610 55.00 5024.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp610 video camera
SAMI [NI] Medium 55.00 5189.00 SOAR Telescope SAM, SAM-FP
kp610 55.00 5024.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp610 video camera
kp630 55.00 5079.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp630 video camera
kp630 55.00 5079.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp630 video camera
Hale-Bopp NH 55.00 3362.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
kp1573 55.00 4767.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters kp1573 kp1573 Replaces KP803
Hale-Bopp Green Continuum 55.00 5261.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
O3 OIII N2 k1014 * 55.55 5024.90 Nicholas U. Mayall 4-meter Telescope Mosaic O3 OIII N2 k1014 * O3 OIII N2 k1014 * 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.
kp673 56.00 5130.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp673 video camera
Hale-Bopp CO 56.00 4265.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
Hale-Bopp CN 57.00 3871.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
Hale-Bopp OH 57.00 3095.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
Hale-Bopp C3 57.00 4061.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
kp804 57.00 4859.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters kp804 kp804 Coating deteriorated, replaced by KP1574 - Not available
H-alpha 59.00 6577.00 WIYN 0.9-meter Telescope S2KB H-alpha H-alpha 10-2007
H-alpha 59.00 6577.00 WIYN 0.9-meter Telescope S2KB H-alpha Bandpass.
H-alpha+16nm 60.00 6742.00 WIYN 0.9-meter Telescope S2KB H-alpha+16nm H-alpha+16nm 4-2008
Hale-Bopp Red Continuum 60.00 7134.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters
H-alpha+4nm 60.00 6618.00 WIYN 0.9-meter Telescope S2KB H-alpha+4nm H-alpha+4nm 10-2007
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