diff --git a/app/src/main/cpp/PhoneDevice.cpp b/app/src/main/cpp/PhoneDevice.cpp
index 785ebd20..154bdb52 100644
--- a/app/src/main/cpp/PhoneDevice.cpp
+++ b/app/src/main/cpp/PhoneDevice.cpp
@@ -1259,7 +1259,7 @@ bool CPhoneDevice::OnImageReady(cv::Mat& mat)
         }
         else
         {
-            photoInfo.exposureTime = captureResult.exposureTime / 100000 * 120 / captureResult.avgY;
+            photoInfo.exposureTime = captureResult.exposureTime / 1000000 * 120 / captureResult.avgY;
             photoInfo.sensitivity = photoInfo.sensitivity * 60 / captureResult.avgY;
             if (photoInfo.sensitivity > 2000)
             {