diff --git a/app/src/main/java/xdsopl/robot36/MainActivity.java b/app/src/main/java/xdsopl/robot36/MainActivity.java
index 7ca3172..880654a 100644
--- a/app/src/main/java/xdsopl/robot36/MainActivity.java
+++ b/app/src/main/java/xdsopl/robot36/MainActivity.java
@@ -430,7 +430,7 @@ public class MainActivity extends AppCompatActivity {
 	public boolean onOptionsItemSelected(MenuItem item) {
 		int id = item.getItemId();
 		if (id == R.id.action_store_scope) {
-			storeBitmap(scopeBitmap);
+			storeScope();
 			return true;
 		}
 		if (id == R.id.action_auto_mode) {
@@ -576,6 +576,14 @@ public class MainActivity extends AppCompatActivity {
 		return super.onOptionsItemSelected(item);
 	}
 
+	private void storeScope() {
+		int width = scopeBuffer.width;
+		int height = scopeBuffer.height / 2;
+		int stride = scopeBuffer.width;
+		int offset = stride * scopeBuffer.line;
+		storeBitmap(Bitmap.createBitmap(scopeBuffer.pixels, offset, stride, width, height, Bitmap.Config.ARGB_8888));
+	}
+
 	private void createScope(Configuration config) {
 		int width = scopeBuffer.width;
 		int height = scopeBuffer.height / 2;