diff --git a/ulc_mm_package/image_processing/processing_constants.py b/ulc_mm_package/image_processing/processing_constants.py
index ab2a96893..04dc09fa9 100644
--- a/ulc_mm_package/image_processing/processing_constants.py
+++ b/ulc_mm_package/image_processing/processing_constants.py
@@ -17,7 +17,7 @@ class FLOWRATE(enum.Enum):
 TOP_PERC = 0.03
 TOL = 0.01
 MIN_ACCEPTABLE_MEAN_BRIGHTNESS = 200
-PERIODIC_AB_PERIOD_NUM_FRAMES = 30  # At 30 frames, that's roughly once per second
+PERIODIC_AB_PERIOD_NUM_FRAMES = 60  # At 30 fps, this is roughly once per 2 seconds
 
 # Autobrightness PID constants
 AB_PID_KP = 0.001