diff --git a/openflexure_microscope/openflexurerc.default.yaml b/openflexure_microscope/openflexurerc.default.yaml
index b443a879..7e24d14f 100644
--- a/openflexure_microscope/openflexurerc.default.yaml
+++ b/openflexure_microscope/openflexurerc.default.yaml
@@ -13,7 +13,7 @@ jpeg_quality: 75
 picamera_params:
   exposure_mode: 'off'
   awb_mode: 'off'
-  awb_gains: [1.3, 1.2]
+  awb_gains: [0.9, 2.8]
   framerate: 24
   shutter_speed: 30000
   saturation: 0