diff --git a/eos/reduction_reflectivity.py b/eos/reduction_reflectivity.py
index d95ab0f..cc8a1af 100644
--- a/eos/reduction_reflectivity.py
+++ b/eos/reduction_reflectivity.py
@@ -109,7 +109,7 @@ class ReflectivityReduction:
         # output
         if self.config.output.is_default('outputName'):
             import datetime
-            _date = datetime.datetime.now().replace(microsecond=0).isoformat()
+            _date = datetime.datetime.now().replace(microsecond=0).isoformat().replace(':', '-')
             if self.header.sample.name:
                 _sampleName = self.header.sample.name.replace(' ', '_')
             else:
diff --git a/test_data/amor2026n000826.hdf b/test_data/amor2026n000826.hdf
new file mode 100644
index 0000000..60298c2
--- /dev/null
+++ b/test_data/amor2026n000826.hdf
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5df5f428116f9594f8d067a84ccb8f0894e001943786997715494638cd2483eb
+size 68269303
diff --git a/tests/test_full_analysis.py b/tests/test_full_analysis.py
index 1821c59..ac6177b 100644
--- a/tests/test_full_analysis.py
+++ b/tests/test_full_analysis.py
@@ -45,21 +45,16 @@ class FullAmorTest(TestCase):
 
     def test_time_slicing(self):
         experiment_config = options.ExperimentConfig(
-                chopperSpeed=self._field_defaults['ExperimentConfig']['chopperSpeed'],
                 chopperPhase=-13.5,
                 chopperPhaseOffset=-5,
-                monitorType=self._field_defaults['ExperimentConfig']['monitorType'],
-                lowCurrentThreshold=self._field_defaults['ExperimentConfig']['lowCurrentThreshold'],
                 yRange=(18, 48),
                 lambdaRange=(3., 11.5),
-                incidentAngle=self._field_defaults['ExperimentConfig']['incidentAngle'],
                 mu=0,
                 nu=0,
                 muOffset=0.0,
                 sampleModel='air | 10 H2O | D2O'
                 )
         reduction_config = options.ReflectivityReductionConfig(
-                normalisationMethod=self._field_defaults['ReflectivityReductionConfig']['normalisationMethod'],
                 qResolution=0.01,
                 qzRange=(0.01, 0.15),
                 thetaRange=(-0.75, 0.75),
@@ -84,22 +79,16 @@ class FullAmorTest(TestCase):
 
     def test_noslicing(self):
         experiment_config = options.ExperimentConfig(
-                chopperSpeed=self._field_defaults['ExperimentConfig']['chopperSpeed'],
                 chopperPhase=-13.5,
                 chopperPhaseOffset=-5,
-                monitorType=self._field_defaults['ExperimentConfig']['monitorType'],
-                lowCurrentThreshold=self._field_defaults['ExperimentConfig']['lowCurrentThreshold'],
                 yRange=(18, 48),
                 lambdaRange=(3., 11.5),
-                incidentAngle=self._field_defaults['ExperimentConfig']['incidentAngle'],
                 mu=0,
                 nu=0,
                 muOffset=0.0,
                 )
         reduction_config = options.ReflectivityReductionConfig(
-                normalisationMethod=self._field_defaults['ReflectivityReductionConfig']['normalisationMethod'],
                 qResolution=0.01,
-                qzRange=self._field_defaults['ReflectivityReductionConfig']['qzRange'],
                 thetaRange=(-0.75, 0.75),
                 fileIdentifier=["6003", "6004", "6005"],
                 scale=[1],
@@ -117,3 +106,24 @@ class FullAmorTest(TestCase):
         # run second time to reuse norm file
         reducer = reduction_reflectivity.ReflectivityReduction(config)
         reducer.reduce()
+
+    def test_eventfilter(self):
+        self.reader_config.year = 2026
+        experiment_config = options.ExperimentConfig()
+        reduction_config = options.ReflectivityReductionConfig(fileIdentifier=["826"],
+                                                               logfilter=['polarization_config_label==2'])
+        output_config = options.ReflectivityOutputConfig(
+                outputFormats=[options.OutputFomatOption.Rqz_ort],
+                outputName='test',
+                outputPath='test_results',
+                )
+        config=options.ReflectivityConfig(self.reader_config, experiment_config, reduction_config, output_config)
+        reducer = reduction_reflectivity.ReflectivityReduction(config)
+        reducer.reduce()
+        espin_up = reducer.dataset.data.events.shape[0]
+        reduction_config.logfilter = ['polarization_config_label==3']
+        reducer = reduction_reflectivity.ReflectivityReduction(config)
+        reducer.reduce()
+        espin_down = reducer.dataset.data.events.shape[0]
+        # measurement should have about 2x as many counts in spin_down
+        self.assertAlmostEqual(espin_down/espin_up, 2., 2)