diff --git a/docs/src/sdk/control/manual_exposure.rst b/docs/src/sdk/control/manual_exposure.rst
index 00195fc..b1d6a09 100644
--- a/docs/src/sdk/control/manual_exposure.rst
+++ b/docs/src/sdk/control/manual_exposure.rst
@@ -33,8 +33,8 @@ s1030：
   api->SetOptionValue(Option::GAIN, 24);
   // brightness/exposure_time: range [0,240], default 120
   api->SetOptionValue(Option::BRIGHTNESS, 120);
-  // contrast/black_level_calibration: range [0,255], default 127
-  api->SetOptionValue(Option::CONTRAST, 127);
+  // contrast/black_level_calibration: range [0,255], default 116
+  api->SetOptionValue(Option::CONTRAST, 116);
 
   LOG(INFO) << "Enable manual-exposure";
   LOG(INFO) << "Set GAIN to " << api->GetOptionValue(Option::GAIN);
diff --git a/samples/tutorials/control/manual_exposure.cc b/samples/tutorials/control/manual_exposure.cc
index 2761f58..68dcc79 100644
--- a/samples/tutorials/control/manual_exposure.cc
+++ b/samples/tutorials/control/manual_exposure.cc
@@ -40,8 +40,8 @@ int main(int argc, char *argv[]) {
     api->SetOptionValue(Option::GAIN, 24);
     // brightness/exposure_time: range [0,240], default 120
     api->SetOptionValue(Option::BRIGHTNESS, 120);
-    // contrast/black_level_calibration: range [0,255], default 127
-    api->SetOptionValue(Option::CONTRAST, 127);
+    // contrast/black_level_calibration: range [0,255], default 116
+    api->SetOptionValue(Option::CONTRAST, 116);
 
     frame_rate = api->GetOptionValue(Option::FRAME_RATE);
 
diff --git a/wrappers/ros/src/mynt_eye_ros_wrapper/config/device/standard.yaml b/wrappers/ros/src/mynt_eye_ros_wrapper/config/device/standard.yaml
index 39801af..611bdce 100644
--- a/wrappers/ros/src/mynt_eye_ros_wrapper/config/device/standard.yaml
+++ b/wrappers/ros/src/mynt_eye_ros_wrapper/config/device/standard.yaml
@@ -8,7 +8,7 @@ standard/brightness: -1
 
 # contrast range: [0,255]
 standard/contrast: -1
-# standard/contrast: 127
+# standard/contrast: 116
 
 # standard/frame_rate range: {10,15,20,25,30,35,40,45,50,55,60}
 standard/frame_rate: -1
@@ -55,4 +55,4 @@ standard/gyro_range: -1
 # MYNTEYE-S1030, Reslution: 376x240, Format: YUYV
 # index_s_1: 1
 
-standard/request_index: 0
\ No newline at end of file
+standard/request_index: 0