diff --git a/ISCamRecorder/CvCamera.cs b/ISCamRecorder/CvCamera.cs
index 1bb71fa..2ed63b8 100644
--- a/ISCamRecorder/CvCamera.cs
+++ b/ISCamRecorder/CvCamera.cs
@@ -26,6 +26,12 @@
         }
     }
 
+    public enum CvCamState {
+        Init,
+        Run,
+        None,
+    }
+
     /// <summary>
     /// 汎用カメラクラス
     /// OpenCVカメラで撮影する
@@ -38,6 +44,7 @@
         MainForm _MF = null;                          // メインフォームインスタンス
         bool _Snap = false;                                 // 静止画撮影フラグ
 
+        public CvCamState State { get; set; } = CvCamState.Init;
         public float CameraFPS { get; private set; } = 0;
         public float CurrentFPS { get { return _Fps.FrameRate; } }
 
@@ -60,11 +67,13 @@
                 camera = null;
                 MessageBox.Show("追加カメラに接続できません", "Error",
                     MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                State = CvCamState.None;
                 return false;
             }
             camera.FrameWidth = frameWidth;
             camera.FrameHeight = frameHeight;
             CameraFPS = (float)camera.Fps;
+            State = CvCamState.Run;
             return true;
         }
 
diff --git a/ISCamRecorder/MainForm.cs b/ISCamRecorder/MainForm.cs
index 8dbac03..01742ee 100644
--- a/ISCamRecorder/MainForm.cs
+++ b/ISCamRecorder/MainForm.cs
@@ -159,7 +159,7 @@
                 TxtRight.Text = $"右カメラ {_Cameras[3].CameraInfo()}";
                 TxtSensor.Text = $"逆血センサー {_Sensor.FrameRate:0.0} Hz 検出対象：{Setting.RBDetectCh}";
                 TxtCvCamera.Text = $"近接カメラ {_CvCamera.CameraInfo()}";
-                if (State == STATE.Init && _CvCamera.CurrentFPS > 0) {
+                if (State == STATE.Init && (_CvCamera.CurrentFPS > 0 || _CvCamera.State == CvCamState.None)) {
                     State = STATE.Idle;
                     this.UpdateControlState();
                 }
diff --git a/ISCamRecorder/Properties/AssemblyInfo.cs b/ISCamRecorder/Properties/AssemblyInfo.cs
index a0a23b3..902b361 100644
--- a/ISCamRecorder/Properties/AssemblyInfo.cs
+++ b/ISCamRecorder/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@
 // すべての値を指定するか、次を使用してビルド番号とリビジョン番号を既定に設定できます
 // 既定値にすることができます:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.7.0.0")]
-[assembly: AssemblyFileVersion("1.7.0.0")]
+[assembly: AssemblyVersion("1.8.0.0")]
+[assembly: AssemblyFileVersion("1.8.0.0")]