1. Filters
  2. Filters

Filters

Filter FWHM (Å) CWL (Å) Telescope Instrument Plot Data Comments
kp1303 800.00 4911.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1303 gunn set combined `g' kp omega (4930)
Gunn g 670.00 4920.00 WIYN 3.5-meter Telescope Hydra SIZE: 4x4-8.95mm.
Gunn g 4940/700 670.00 4920.00 SMARTS Consortium: 0.9-meter Telescope BLANK Size: 4x4 Thick: 8.95
Gunn g 670.00 4920.00 WIYN 3.5-meter Telescope Hydra SIZE: 4x4-8.95mm.
kp524 51.00 4933.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp524 video camera
GG495 0.00 4950.00 Nicholas U. Mayall 4-meter Telescope KOSMOS GG495 GG495 KOSMOS dedicated blocker
GG-495 4950.00 SOAR Telescope Goodman Goodman Spectrograph circular 4 inch diameter filters - Cutoff wavelength: < 495
Hydra EC#12 341.00 4955.00 BLANK Hydra, Hydra Echelle Mode Hydra EC#12 Order: 11.25
Gunn g 706.00 4961.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Gunn g Gunn g
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
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.
OIII_G0318 47.00 4990.00 Gemini North GMOS-N OIII_G0318 OIII_G0318
OIII_G0338 44.00 4990.00 Gemini South GMOS-S OIII_G0338 OIII_G0338
kp272 28.00 5002.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp272 nebular set 183 sub
kp1413 24.00 5005.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1413 backup for kp272-janos
[O III] 45.00 5008.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters [O III] [O III]
kp1226 100.00 5008.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1226 video camera
kp1226 100.00 5008.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1226 video camera
kp586 15.00 5009.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter o III
BG38 2950.00 5010.00 Nicholas U. Mayall 4-meter Telescope KOSMOS BG38 BG38 Bandpass filter. For engineering purposes, not available to users.
kp1547 31.00 5010.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1547 o III
[O III] -2 49.00 5011.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters [O III] -2 [O III] -2 new 10/2011
kp183 23.00 5013.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp183 nebular set o III 272 sub
kp183 23.00 5013.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp183 nebular set o III 272 sub
kp1379a 894.00 5015.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1379a gunn set `g' from space tele
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)
M Washington c6007 1020.00 5020.00 Nicholas U. Mayall 4-meter Telescope Mosaic M Washington c6007 M Washington c6007 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.
BTFI 5021/17 16.50 5020.90 SOAR Telescope SAM, SAM-FP
[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
kp610 55.00 5024.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp610 video camera
kp610 55.00 5024.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp610 video camera
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.
M Wash. 1023.00 5025.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3-08.08mm.
M Wash. 5025/1023 1023.00 5025.00 SMARTS Consortium: 0.9-meter Telescope BLANK M Wash. 5025/1023 Size: 3x3 Thick: 8.08
M Wash. 1023.00 5025.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3-08.08mm.
kp1389 53.00 5026.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters kp1389 kp1389 Andover
N/A 50.00 5027.00 WIYN 3.5-meter Telescope Hydra N/A SIZE: 4x4-7.83mm.
5019/50 50.00 5027.00 SMARTS Consortium: 0.9-meter Telescope BLANK 5019/50 5019/50 Size: 4x4 Thick: 7.83
N/A 50.00 5027.00 WIYN 3.5-meter Telescope Hydra N/A SIZE: 4x4-7.83mm.
BTFI_5021/17 Narrow 16.50 5030.90 SOAR Telescope SAM, SAMI
M Wash. 990.00 5040.00 WIYN 3.5-meter Telescope Hydra M Wash. M Wash. SIZE: 4x4-8.25mm.
M Wash. 5040/990 990.00 5040.00 SMARTS Consortium: 0.9-meter Telescope BLANK M Wash. 5040/990 M Wash. 5040/990 Size: 4x4 Thick: 8.25
M Wash 990.00 5040.00 WIYN 3.5-meter Telescope Hydra M Wash. M Wash. SIZE: 4x4-8.25mm.
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
kp1535 988.00 5086.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp1535 wash set m
Washington - m 1012.00 5097.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters Washington - m Washington - m Corning glass
M Washington k1007 1140.00 5100.00 Nicholas U. Mayall 4-meter Telescope Mosaic M Washington k1007 M Washington k1007 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 plot at the bottom of the page.
g Gunn-T 900.00 5118.00 WIYN 3.5-meter Telescope Hydra g Gunn-T g Gunn-T SIZE: 3x3-05.05mm.
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