diff --git a/astropy_helpers b/astropy_helpers
index 9431edf..d2a6304 160000
--- a/astropy_helpers
+++ b/astropy_helpers
@@ -1 +1 @@
-Subproject commit 9431edf2a6e4692bfbd9e6326f01288d61d414e9
+Subproject commit d2a6304a3e801bc2cb053ccf1cf09a9f1e62036c
diff --git a/docs/_static/ibis.png b/docs/_static/ibis.png
new file mode 100644
index 0000000..3ae11e8
Binary files /dev/null and b/docs/_static/ibis.png differ
diff --git a/docs/filters.rst b/docs/filters.rst
index 36d533c..7b851c7 100644
--- a/docs/filters.rst
+++ b/docs/filters.rst
@@ -343,7 +343,22 @@ The command below produces the figure::
 .. image:: _static/gaiadr3.png
     :alt: GAIA DR3 filter curves
 
-	  
+Intermediate-Band Imaging Survey Filters
+----------------------------------------
+
+Intermediate-Band Imaging Survey (IBIS) filters taken from Arjun Dey (2024,
+private communication). The response is the total transmission, including the
+filter, the instrument, and the atmosphere at an airmass of 1.0.
+
+The command below produces the figure::
+
+    ibis = speclite.filters.load_filters('ibis-*')
+    speclite.filters.plot_filters(ibis)
+
+.. image:: _static/ibis.png
+    :alt: Intermediate-Band Imaging Survey
+
+
 .. _custom-filters:
 
 Custom Filters
diff --git a/speclite/data/filters/ibis-M411.ecsv b/speclite/data/filters/ibis-M411.ecsv
new file mode 100644
index 0000000..2da1584
--- /dev/null
+++ b/speclite/data/filters/ibis-M411.ecsv
@@ -0,0 +1,266 @@
+# %ECSV 1.0
+# ---
+# datatype:
+# - {name: wavelength, unit: Angstrom, datatype: float64}
+# - {name: response, datatype: float64}
+# meta:
+#   __serialized_columns__:
+#     wavelength:
+#       __class__: astropy.units.quantity.Quantity
+#       unit: !astropy.units.Unit {unit: Angstrom}
+#       value: !astropy.table.SerializedColumn {name: wavelength}
+#   band_name: M411
+#   group_name: ibis
+# schema: astropy-2.0
+wavelength response
+3900.0 0.
+3902.0 3.17835e-05
+3904.0 3.48673e-05
+3906.0 3.83602e-05
+3908.0 4.2352400000000005e-05
+3910.0 4.69551e-05
+3912.0 5.22936e-05
+3914.0 5.85072e-05
+3916.0 6.57486e-05
+3918.0 7.41763e-05
+3920.0 8.396519999999999e-05
+3922.0 9.53024e-05
+3924.0 0.00010839700000000001
+3926.0 0.0001235
+3928.0 0.000140893
+3930.0 0.000160953
+3932.0 0.000184129
+3934.0 0.00021098200000000002
+3936.0 0.00024222
+3938.0 0.00027870200000000003
+3940.0 0.00032148400000000003
+3942.0 0.00037182100000000004
+3944.0 0.00043117700000000004
+3946.0 0.000501277
+3948.0 0.000584044
+3950.0 0.000681725
+3952.0 0.000796845
+3954.0 0.0009323339999999999
+3956.0 0.00109174
+3958.0 0.0012793499999999998
+3960.0 0.0015007
+3962.0 0.0017629
+3964.0 0.00207536
+3966.0 0.00245085
+3968.0 0.00290609
+3970.0 0.00346349
+3972.0 0.00415193
+3974.0 0.0050084
+3976.0 0.00607958
+3978.0 0.00742182
+3980.0 0.009103400000000001
+3982.0 0.0112035
+3984.0 0.0138126
+3986.0 0.0170332
+3988.0 0.0209746
+3990.0 0.0257529
+3992.0 0.031481300000000004
+3994.0 0.0382597
+3996.0 0.046167
+3998.0 0.055238800000000005
+4000.0 0.0654605
+4002.0 0.076603
+4004.0 0.08862869999999999
+4006.0 0.101315
+4008.0 0.11436600000000001
+4010.0 0.127444
+4012.0 0.140185
+4014.0 0.15224000000000001
+4016.0 0.163307
+4018.0 0.173181
+4020.0 0.18174800000000002
+4022.0 0.188996
+4024.0 0.19499300000000003
+4026.0 0.199868
+4028.0 0.203776
+4030.0 0.20687899999999998
+4032.0 0.209329
+4034.0 0.211263
+4036.0 0.21279900000000002
+4038.0 0.21404199999999998
+4040.0 0.21508
+4042.0 0.215987
+4044.0 0.21682099999999999
+4046.0 0.21762499999999999
+4048.0 0.218424
+4050.0 0.219232
+4052.0 0.220046
+4054.0 0.220859
+4056.0 0.22165800000000002
+4058.0 0.22243300000000002
+4060.0 0.22317499999999998
+4062.0 0.223883
+4064.0 0.22456199999999998
+4066.0 0.225224
+4068.0 0.225882
+4070.0 0.226549
+4072.0 0.22723600000000002
+4074.0 0.22794
+4076.0 0.228657
+4078.0 0.229375
+4080.0 0.23008199999999998
+4082.0 0.23077000000000003
+4084.0 0.231447
+4086.0 0.23212599999999997
+4088.0 0.232824
+4090.0 0.23355599999999999
+4092.0 0.23433199999999998
+4094.0 0.23514500000000002
+4096.0 0.23598
+4098.0 0.236825
+4100.0 0.237662
+4102.0 0.238474
+4104.0 0.23925999999999997
+4106.0 0.240016
+4108.0 0.24074
+4110.0 0.241434
+4112.0 0.242102
+4114.0 0.242749
+4116.0 0.24338
+4118.0 0.24400200000000002
+4120.0 0.24462299999999998
+4122.0 0.245246
+4124.0 0.245867
+4126.0 0.246478
+4128.0 0.247071
+4130.0 0.247637
+4132.0 0.248171
+4134.0 0.248687
+4136.0 0.249205
+4138.0 0.249741
+4140.0 0.250316
+4142.0 0.250943
+4144.0 0.251615
+4146.0 0.25232299999999996
+4148.0 0.253055
+4150.0 0.25379799999999997
+4152.0 0.254539
+4154.0 0.255264
+4156.0 0.255963
+4158.0 0.256624
+4160.0 0.257237
+4162.0 0.25780200000000003
+4164.0 0.258332
+4166.0 0.258852
+4168.0 0.25938300000000003
+4170.0 0.259949
+4172.0 0.260569
+4174.0 0.26123999999999997
+4176.0 0.26195599999999997
+4178.0 0.262707
+4180.0 0.263482
+4182.0 0.26426700000000003
+4184.0 0.265048
+4186.0 0.265809
+4188.0 0.266533
+4190.0 0.267204
+4192.0 0.267813
+4194.0 0.268367
+4196.0 0.268882
+4198.0 0.269376
+4200.0 0.26987
+4202.0 0.270382
+4204.0 0.270915
+4206.0 0.271465
+4208.0 0.27203299999999997
+4210.0 0.272616
+4212.0 0.27321100000000004
+4214.0 0.273811
+4216.0 0.274404
+4218.0 0.274974
+4220.0 0.2755
+4222.0 0.27596
+4224.0 0.276344
+4226.0 0.276642
+4228.0 0.276833
+4230.0 0.276885
+4232.0 0.27674499999999996
+4234.0 0.276313
+4236.0 0.275463
+4238.0 0.274052
+4240.0 0.271918
+4242.0 0.268895
+4244.0 0.264843
+4246.0 0.259628
+4248.0 0.253137
+4250.0 0.245278
+4252.0 0.23600200000000002
+4254.0 0.225295
+4256.0 0.213209
+4258.0 0.199891
+4260.0 0.18556999999999998
+4262.0 0.17055800000000002
+4264.0 0.155234
+4266.0 0.139985
+4268.0 0.125176
+4270.0 0.111105
+4272.0 0.09799799999999999
+4274.0 0.0859877
+4276.0 0.0751264
+4278.0 0.06541570000000001
+4280.0 0.0568049
+4282.0 0.0492219
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+4286.0 0.0367934
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+4290.0 0.027400699999999997
+4292.0 0.0236262
+4294.0 0.0203639
+4296.0 0.017546600000000002
+4298.0 0.015117400000000001
+4300.0 0.0130254
+4302.0 0.0112368
+4304.0 0.00970228
+4306.0 0.00838851
+4308.0 0.00726624
+4310.0 0.00630847
+4312.0 0.0054916900000000005
+4314.0 0.00479455
+4316.0 0.00419819
+4318.0 0.0036870199999999996
+4320.0 0.00324739
+4322.0 0.00286815
+4324.0 0.0025404
+4326.0 0.00225616
+4328.0 0.00200895
+4330.0 0.00179329
+4332.0 0.00160469
+4334.0 0.00143922
+4336.0 0.00129354
+4338.0 0.001165
+4340.0 0.00105128
+4342.0 0.0009505230000000001
+4344.0 0.000861183
+4346.0 0.0007818899999999999
+4348.0 0.000711477
+4350.0 0.000648853
+4352.0 0.000593078
+4354.0 0.000543299
+4356.0 0.00049873
+4358.0 0.00045870300000000003
+4360.0 0.00042259999999999997
+4362.0 0.000389894
+4364.0 0.00036010100000000004
+4366.0 0.000332803
+4368.0 0.000307676
+4370.0 0.000284439
+4372.0 0.00026289
+4374.0 0.00024290300000000002
+4376.0 0.000224383
+4378.0 0.00020727099999999997
+4380.0 0.000191513
+4382.0 0.000177063
+4384.0 0.00016386299999999999
+4386.0 0.000151845
+4388.0 0.000140948
+4390.0 0.0001311
+4392.0 0.000122229
+4394.0 0.00011426600000000001
+4396.0 0.000107134
+4398.0 0.000100754
+4400.0 0.
diff --git a/speclite/data/filters/ibis-M438.ecsv b/speclite/data/filters/ibis-M438.ecsv
new file mode 100644
index 0000000..a922ddd
--- /dev/null
+++ b/speclite/data/filters/ibis-M438.ecsv
@@ -0,0 +1,462 @@
+# %ECSV 1.0
+# ---
+# datatype:
+# - {name: wavelength, unit: Angstrom, datatype: float64}
+# - {name: response, datatype: float64}
+# meta:
+#   __serialized_columns__:
+#     wavelength:
+#       __class__: astropy.units.quantity.Quantity
+#       unit: !astropy.units.Unit {unit: Angstrom}
+#       value: !astropy.table.SerializedColumn {name: wavelength}
+#   band_name: M438
+#   group_name: ibis
+# schema: astropy-2.0
+wavelength response
+3978.0 0.0
+3980.0 2.0291700000000002e-07
+3982.0 2.0373300000000002e-07
+3984.0 2.04549e-07
+3986.0 2.0536299999999998e-07
+3988.0 2.06177e-07
+3990.0 2.0699e-07
+3992.0 2.0780300000000002e-07
+3994.0 2.08614e-07
+3996.0 2.09425e-07
+3998.0 2.10236e-07
+4000.0 2.1104500000000002e-07
+4002.0 2.1185399999999999e-07
+4004.0 4.25323e-07
+4006.0 4.26937e-07
+4008.0 4.2855e-07
+4010.0 4.30161e-07
+4012.0 4.3176999999999995e-07
+4014.0 4.33378e-07
+4016.0 4.3498399999999995e-07
+4018.0 4.36588e-07
+4020.0 6.572849999999999e-07
+4022.0 6.59686e-07
+4024.0 6.62084e-07
+4026.0 6.64479e-07
+4028.0 6.66872e-07
+4030.0 6.69261e-07
+4032.0 8.95531e-07
+4034.0 8.987099999999999e-07
+4036.0 9.01884e-07
+4038.0 1.13132e-06
+4040.0 1.13527e-06
+4042.0 1.3670699999999998e-06
+4044.0 1.37181e-06
+4046.0 1.60596e-06
+4048.0 1.61147e-06
+4050.0 1.84797e-06
+4052.0 1.8542600000000001e-06
+4054.0 2.09311e-06
+4056.0 2.10016e-06
+4058.0 2.34132e-06
+4060.0 2.34909e-06
+4062.0 2.35684e-06
+4064.0 2.6010200000000003e-06
+4066.0 2.60953e-06
+4068.0 2.85609e-06
+4070.0 2.8654899999999996e-06
+4072.0 3.11456e-06
+4074.0 3.36521e-06
+4076.0 3.37613e-06
+4078.0 3.62867e-06
+4080.0 3.63958e-06
+4082.0 3.89324e-06
+4084.0 3.90383e-06
+4086.0 4.1589e-06
+4088.0 4.41538e-06
+4090.0 4.67361e-06
+4092.0 4.933920000000001e-06
+4094.0 5.19626e-06
+4096.0 5.7087e-06
+4098.0 6.22439e-06
+4100.0 6.7431e-06
+4102.0 7.51512e-06
+4104.0 8.29137e-06
+4106.0 9.32385e-06
+4108.0 1.01093e-05
+4110.0 1.1152499999999999e-05
+4112.0 1.2455700000000002e-05
+4114.0 1.3511199999999999e-05
+4116.0 1.45727e-05
+4118.0 1.58966e-05
+4120.0 1.69712e-05
+4122.0 1.80522e-05
+4124.0 1.9139e-05
+4126.0 2.04902e-05
+4128.0 2.1847e-05
+4130.0 2.3207900000000002e-05
+4132.0 2.5094700000000002e-05
+4134.0 2.69874e-05
+4136.0 2.94127e-05
+4138.0 3.21126e-05
+4140.0 3.50914e-05
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+4144.0 4.24322e-05
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+4150.0 5.69514e-05
+4152.0 6.30058e-05
+4154.0 6.9359e-05
+4156.0 7.65496e-05
+4158.0 8.45801e-05
+4160.0 9.37223e-05
+4162.0 0.000103707
+4164.0 0.000115085
+4166.0 0.00012759700000000002
+4168.0 0.000142076
+4170.0 0.00015882
+4172.0 0.00017758099999999998
+4174.0 0.000199477
+4176.0 0.00022453000000000002
+4178.0 0.000253315
+4180.0 0.000286964
+4182.0 0.000326064
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+4188.0 0.000489504
+4190.0 0.000564425
+4192.0 0.000652808
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+4198.0 0.0010271
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+4230.0 0.014723
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+4280.0 0.28985700000000003
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+4356.0 0.317534
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+4362.0 0.319448
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+4366.0 0.32089300000000004
+4368.0 0.321611
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+4374.0 0.323518
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+4380.0 0.325278
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+4388.0 0.327901
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+4396.0 0.330186
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+4400.0 0.33135800000000004
+4402.0 0.332
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+4406.0 0.333364
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+4414.0 0.335972
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+4462.0 0.349626
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+4466.0 0.351004
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+4582.0 0.00335646
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+4586.0 0.00266299
+4588.0 0.00237395
+4590.0 0.00211703
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+4596.0 0.001502
+4598.0 0.0013405000000000001
+4600.0 0.00119795
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diff --git a/speclite/data/filters/ibis-M464.ecsv b/speclite/data/filters/ibis-M464.ecsv
new file mode 100644
index 0000000..8585acd
--- /dev/null
+++ b/speclite/data/filters/ibis-M464.ecsv
@@ -0,0 +1,291 @@
+# %ECSV 1.0
+# ---
+# datatype:
+# - {name: wavelength, unit: Angstrom, datatype: float64}
+# - {name: response, datatype: float64}
+# meta:
+#   __serialized_columns__:
+#     wavelength:
+#       __class__: astropy.units.quantity.Quantity
+#       unit: !astropy.units.Unit {unit: Angstrom}
+#       value: !astropy.table.SerializedColumn {name: wavelength}
+#   band_name: M464
+#   group_name: ibis
+# schema: astropy-2.0
+wavelength response
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diff --git a/speclite/data/filters/ibis-M490.ecsv b/speclite/data/filters/ibis-M490.ecsv
new file mode 100644
index 0000000..16deacb
--- /dev/null
+++ b/speclite/data/filters/ibis-M490.ecsv
@@ -0,0 +1,477 @@
+# %ECSV 1.0
+# ---
+# datatype:
+# - {name: wavelength, unit: Angstrom, datatype: float64}
+# - {name: response, datatype: float64}
+# meta:
+#   __serialized_columns__:
+#     wavelength:
+#       __class__: astropy.units.quantity.Quantity
+#       unit: !astropy.units.Unit {unit: Angstrom}
+#       value: !astropy.table.SerializedColumn {name: wavelength}
+#   band_name: M490
+#   group_name: ibis
+# schema: astropy-2.0
+wavelength response
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diff --git a/speclite/data/filters/ibis-M517.ecsv b/speclite/data/filters/ibis-M517.ecsv
new file mode 100644
index 0000000..3bd6218
--- /dev/null
+++ b/speclite/data/filters/ibis-M517.ecsv
@@ -0,0 +1,447 @@
+# %ECSV 1.0
+# ---
+# datatype:
+# - {name: wavelength, unit: Angstrom, datatype: float64}
+# - {name: response, datatype: float64}
+# meta:
+#   __serialized_columns__:
+#     wavelength:
+#       __class__: astropy.units.quantity.Quantity
+#       unit: !astropy.units.Unit {unit: Angstrom}
+#       value: !astropy.table.SerializedColumn {name: wavelength}
+#   band_name: M517
+#   group_name: ibis
+# schema: astropy-2.0
+wavelength response
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diff --git a/speclite/filters.py b/speclite/filters.py
index 669efa1..79f1ca1 100644
--- a/speclite/filters.py
+++ b/speclite/filters.py
@@ -11,7 +11,7 @@
 are:
 
     >>> filter_group_names
-    ['sdss2010', 'sdss2010noatm', 'decam2014', 'wise2010', 'hsc2017', 'lsst2016', 'lsst2023', 'bessell', 'BASS', 'MzLS', 'Euclid', 'decamDR1', 'decamDR1noatm', 'gaiadr2', 'gaiadr3', 'twomass', 'galex', 'odin', 'suprime', 'cfht_megacam']
+    ['sdss2010', 'sdss2010noatm', 'decam2014', 'wise2010', 'hsc2017', 'lsst2016', 'lsst2023', 'bessell', 'BASS', 'MzLS', 'Euclid', 'decamDR1', 'decamDR1noatm', 'gaiadr2', 'gaiadr3', 'twomass', 'galex', 'odin', 'suprime', 'cfht_megacam', 'ibis']
 
 List the band names associated with any group using, for example:
 
@@ -249,7 +249,7 @@
 filter_group_names = [
     'sdss2010', 'sdss2010noatm', 'decam2014', 'wise2010', 'hsc2017', 'lsst2016', 'lsst2023', 'bessell',
     'BASS', 'MzLS', 'Euclid', 'decamDR1', 'decamDR1noatm', 'gaiadr2', 'gaiadr3', 'twomass',
-    'galex', 'odin', 'suprime', 'cfht_megacam']
+    'galex', 'odin', 'suprime', 'cfht_megacam', 'ibis']
 
 default_wavelength_unit = astropy.units.Angstrom