diff --git a/ISCamRecorder/ISCamera.cs b/ISCamRecorder/ISCamera.cs
index 49d820b..fc15cd0 100644
--- a/ISCamRecorder/ISCamera.cs
+++ b/ISCamRecorder/ISCamera.cs
@@ -15,6 +15,7 @@
         readonly float FRAME_RATE = 40F;    // 設定ファイル無い時のFPS
         readonly int JPEG_QUALITY = 90;
 
+        MainForm _MainForm = null;  // メインフォーム
         ICImagingControl _Cam;      // カメラオブジェクト
         string _SerialNumber;       // シリアル番号
         string _CamID;              // カメラID
@@ -22,10 +23,11 @@
         FrameRateCounter _Fps = new FrameRateCounter(10);   // フレームレート計測
         FrameQueueSink _PreviewSink;    // プレビューSink
         FrameQueueSink _RecSink;        // 録画Sink
+        FrameSnapSink _SnapSink;        // 静止画Sink
         SinkListener _SinkListener = new SinkListener();
         IFrameQueueBuffer[] _bufferlist = null; // 録画バッファ
         bool _Recoding = false;     // 録画中フラグ
-        DateTime _RecodingBegin;    // 録画開始時間
+        //DateTime _RecodingBegin;    // 録画開始時間
 
         public float FrameRate { get { return _Fps.FrameRate; } }
 
@@ -34,12 +36,14 @@
         /// </summary>
         /// <param name="cameraControl"></param>
         /// <param name="serialNumber"></param>
-        public ISCamera(ICImagingControl cameraControl, string serialNumber) {
+        public ISCamera(MainForm mf, ICImagingControl cameraControl, string serialNumber) {
+            _MainForm = mf;
             _Cam = cameraControl;
             _SerialNumber = serialNumber;
             _CamID = $"Cam{_SerialNumber.Substring(_SerialNumber.Length - 2)}";
             _RecSink = new FrameQueueSink(_SinkListener, MediaSubtypes.RGB32);
             _PreviewSink = new FrameQueueSink(CaptureFrame, MediaSubtypes.RGB32, 5);
+            _SnapSink = new FrameSnapSink();
         }
 
         /// <summary>
@@ -97,6 +101,36 @@
         }
 
         /// <summary>
+        /// 画像撮影
+        /// </summary>
+        public void SnapImage() {
+            TIS.Imaging.FrameSnapSink snapSink = new TIS.Imaging.FrameSnapSink();
+            _Cam.LiveStop();
+            _Cam.Sink = snapSink;
+            _Cam.LiveStart();
+
+            TIS.Imaging.IFrameQueueBuffer frm = snapSink.SnapSingle(TimeSpan.FromSeconds(5));
+            var outDir = Path.Combine(_MainForm.OutputBaseDir, "image");
+            Directory.CreateDirectory(outDir);
+            var filename = Path.Combine(outDir, $"{_CamID}_{DateTime.Now.ToString("yyyyMMdd_HHmmss")}.{_MainForm.ImageType.ToLower()}");
+            switch (_MainForm.ImageType) {
+            case "JPG":
+                frm.SaveAsJpeg(filename, JPEG_QUALITY);
+                break;
+            case "BMP":
+                frm.SaveAsBitmap(filename);
+                break;
+            case "TIFF":
+                frm.SaveAsTiff(filename);
+                break;
+            }
+
+            _Cam.LiveStop();
+            _Cam.Sink = _PreviewSink;
+            _Cam.LiveStart();
+        }
+
+        /// <summary>
         /// 録画
         /// </summary>
         public void RecordToMemory(int framesToCapture) {
@@ -106,7 +140,6 @@
             // メモリ確保
             _RecSink.AllocAndQueueBuffers(framesToCapture);
             // 撮影
-            _RecodingBegin = DateTime.Now;
             while (_Recoding) {
                 if (framesToCapture <= _RecSink.OutputQueueSize + 1) break;
             }
@@ -136,7 +169,7 @@
             for (int i = 0; i < _bufferlist.Length; i++) {
                 writer.Write(_bufferlist[i]);
                 var driverTime = _bufferlist[i].FrameMetadata.DriverFrameFirstPacketTime;
-                var frameTime = _RecodingBegin.Add(driverTime - firstDriverTime); // パケットをドライバが受信した時刻
+                var frameTime = _MainForm.RecodingTime.Add(driverTime - firstDriverTime); // パケットをドライバが受信した時刻
                 string strSampleTime = frameTime.ToString(@"HHmmss\.fff");
                 var fileName = $"{_CamID}_{strSampleTime}.{imageType.ToLower()}";
                 var filePath = Path.Combine(outDir2, fileName);
diff --git a/ISCamRecorder/MainForm.Designer.cs b/ISCamRecorder/MainForm.Designer.cs
index 4deb50d..3da747e 100644
--- a/ISCamRecorder/MainForm.Designer.cs
+++ b/ISCamRecorder/MainForm.Designer.cs
@@ -477,7 +477,7 @@
             this.BtnSnapImage.Name = "BtnSnapImage";
             this.BtnSnapImage.Size = new System.Drawing.Size(74, 27);
             this.BtnSnapImage.TabIndex = 18;
-            this.BtnSnapImage.Text = "終了";
+            this.BtnSnapImage.Text = "静止画撮影";
             this.BtnSnapImage.UseVisualStyleBackColor = true;
             this.BtnSnapImage.Click += new System.EventHandler(this.BtnSnapImage_Click);
             // 
@@ -530,6 +530,7 @@
             this.CboImageType.Size = new System.Drawing.Size(52, 20);
             this.CboImageType.TabIndex = 21;
             this.CboImageType.Text = "JPG";
+            this.CboImageType.SelectedIndexChanged += new System.EventHandler(this.CboImageType_SelectedIndexChanged);
             // 
             // ChkStartSW
             // 
diff --git a/ISCamRecorder/MainForm.cs b/ISCamRecorder/MainForm.cs
index 234f6ed..b830c47 100644
--- a/ISCamRecorder/MainForm.cs
+++ b/ISCamRecorder/MainForm.cs
@@ -55,7 +55,9 @@
         public STATE State { get; private set; } = STATE.Init;          // ソフトウェアの状態
         public DateTime RecodingTime { get; private set; } = DateTime.Now; // 録画開始時間
         public string RecodingTimeStr { get { return RecodingTime.ToString("yyyyMMdd_HHmmss"); } }  // 録画開始時間文字列
-        public string OutputDir { get { return Path.Combine(TxtOutputDir.Text, $"rec{RecodingTimeStr}"); } } // データ保存フォルダ
+        public string OutputBaseDir { get { return TxtOutputDir.Text; } } // データ保存フォルダ
+        public string OutputDir { get { return Path.Combine(OutputBaseDir, $"rec{RecodingTimeStr}"); } } // データ保存フォルダ
+        public string ImageType { get; private set; }
 
 
         /// <summary>
@@ -77,10 +79,10 @@
             SetTitle(this.Text);
 
             // カメラ設定
-            _Cameras.Add(new ISCamera(icTop, "9220016"));
-            _Cameras.Add(new ISCamera(icLeft, "9220018"));
-            _Cameras.Add(new ISCamera(icFront, "9220021"));
-            _Cameras.Add(new ISCamera(icRight, "9220025"));
+            _Cameras.Add(new ISCamera(this, icTop, "9220016"));
+            _Cameras.Add(new ISCamera(this, icLeft, "9220018"));
+            _Cameras.Add(new ISCamera(this, icFront, "9220021"));
+            _Cameras.Add(new ISCamera(this, icRight, "9220025"));
             _Cameras.ForEach(c => c.Connect());
 
             // タイマー＆スレッド起動
@@ -89,6 +91,8 @@
             _SerialThread = Task.Run(SerialThread);
             _CvCameraThread = Task.Run(CvCameraThread);
 
+            ImageType = CboImageType.Text;
+
             State = STATE.Idle;
         }
 
@@ -142,7 +146,7 @@
         static void UITimerCB(object obj) {
             if (((MainForm)obj).State == STATE.Exit) return;
             ((MainForm)obj).UpdateForm();
-            ((MainForm)obj).EndRecoding();
+            //((MainForm)obj).EndRecoding();
         }
 
         /// <summary>
@@ -195,7 +199,12 @@
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void MainForm_FormClosing(object sender, FormClosingEventArgs e) {
-            //e.Cancel = true;
+            if (State == STATE.Idle) {
+                Task.Run(ExitProgram);
+                e.Cancel = true;
+            }else if(State != STATE.Exit) {
+                e.Cancel = true;
+            }
         }
 
         /// <summary>
@@ -265,16 +274,16 @@
             StartRecoding();
         }
 
+        /// <summary>
+        /// 録画開始・中断
+        /// </summary>
         public void StartRecoding() {
-            if (_RecodingThread != null) {
-                // 中断
-                //_Cameras.ForEach(c => c.StopRecoding());
-                Debug.WriteLine("recoding");
-            } else {
-                var player = new SoundPlayer(@"start.wav");
-                player.Play();
-
+            if (State == STATE.Idle) {
                 _RecodingThread = Task.Run(RecodingThread);
+            } else if (State == STATE.Recoding) {
+                // 中断
+                Debug.WriteLine("Stop recoding");
+                _Cameras.ForEach(c => c.StopRecoding());
             }
         }
 
@@ -291,7 +300,7 @@
             this.Invoke((MethodInvoker)delegate {
                 _Cameras.ForEach(c => c.ChangeSink(true));
 
-                BtnRecodeMovie.Enabled = false;
+                //BtnRecodeMovie.Enabled = false;
                 BtnSetProperty.Enabled = false;
                 BtnRecodeMovie.Text = "撮影中";
                 originalButtonColor = BtnRecodeMovie.BackColor;
@@ -308,10 +317,12 @@
             var imageType = imageTypeTxt;
 
             // 録画開始
+            var player = new SoundPlayer(@"start.wav");
+            player.Play();
             RecodingTime = DateTime.Now;
             Directory.CreateDirectory(OutputDir);
             State = STATE.Recoding;
-            //_CvCamera.StartRecoding();
+
             // 録画
             Task[] tasks = new Task[4];
             for (var i = 0; i < _Cameras.Count; i++) {
@@ -321,7 +332,8 @@
             Task.WaitAll(tasks);
 
             State = STATE.Saving;
-            //_CvCamera.StopRecoding();
+            player = new SoundPlayer(@"end.wav");
+            player.Play();
 
             // 保存
             this.Invoke((MethodInvoker)delegate {
@@ -354,6 +366,14 @@
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void BtnSnapImage_Click(object sender, EventArgs e) {
+            if (State != STATE.Idle) return;
+            _Cameras.ForEach(c => c.SnapImage());
+        }
+
+        /// <summary>
+        /// プログラム終了
+        /// </summary>
+        private void ExitProgram() {
             State = STATE.Exit;
             _UITimer.Dispose();
 
@@ -365,7 +385,18 @@
             _TriggerThread.Wait(timeout);
             Debug.WriteLine("_TriggerThread stop");
 
-            this.Close();
+            this.Invoke((MethodInvoker)delegate {
+                this.Close();
+            });
+        }
+
+        /// <summary>
+        /// 画像形式選択時
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void CboImageType_SelectedIndexChanged(object sender, EventArgs e) {
+            ImageType = CboImageType.Text;
         }
     }
 }
diff --git a/ISCamRecorder/media/end.wav b/ISCamRecorder/media/end.wav
index cab656c..a5160f0 100644
--- a/ISCamRecorder/media/end.wav
+++ b/ISCamRecorder/media/end.wav
Binary files differ