diff --git a/app/src/main/java/no/naiv/tiltshift/util/OrientationDetector.kt b/app/src/main/java/no/naiv/tiltshift/util/OrientationDetector.kt
index f7b49da..45bcf3a 100644
--- a/app/src/main/java/no/naiv/tiltshift/util/OrientationDetector.kt
+++ b/app/src/main/java/no/naiv/tiltshift/util/OrientationDetector.kt
@@ -24,11 +24,17 @@ class OrientationDetector(private val context: Context) {
             override fun onOrientationChanged(orientation: Int) {
                 if (orientation == ORIENTATION_UNKNOWN) return
 
+                // OrientationEventListener reports the device's physical rotation
+                // (clockwise from natural). Surface.ROTATION_* describes the screen's
+                // logical rotation, which is the opposite direction — so device tilted
+                // 90° CW (orientation ≈ 90, "left side at top") maps to ROTATION_270,
+                // and 90° CCW (orientation ≈ 270) maps to ROTATION_90. Matches the
+                // CameraX docs example for setTargetRotation.
                 val rotation = when {
                     orientation >= 315 || orientation < 45 -> Surface.ROTATION_0
-                    orientation >= 45 && orientation < 135 -> Surface.ROTATION_90
+                    orientation >= 45 && orientation < 135 -> Surface.ROTATION_270
                     orientation >= 135 && orientation < 225 -> Surface.ROTATION_180
-                    else -> Surface.ROTATION_270
+                    else -> Surface.ROTATION_90
                 }
 
                 if (rotation != lastRotation) {
diff --git a/version.properties b/version.properties
index 7f96eb7..0f86d43 100644
--- a/version.properties
+++ b/version.properties
@@ -1,4 +1,4 @@
 versionMajor=1
 versionMinor=1
-versionPatch=6
-versionCode=8
+versionPatch=7
+versionCode=9