diff --git a/Camera_connect/BaslerCamera.cs b/Camera_connect/BaslerCamera.cs
index 5230e91..2adae46 100644
--- a/Camera_connect/BaslerCamera.cs
+++ b/Camera_connect/BaslerCamera.cs
@@ -7,23 +7,18 @@ using System.Windows.Forms;
 
 namespace Camera_connect
 {
-    public class BaslerCamera
+    public class BaslerCamera(Main form)
     {
-        private readonly Main form;
-        private readonly object lockObject = new object();
+        private readonly Main form = form;
+        private readonly object lockObject = new();
         public int CameraNumber => CameraFinder.Enumerate().Count;
         public event Action<Bitmap> CameraImageEvent;
 
-        private readonly List<Camera> allCameras = new List<Camera>();
-        private readonly PixelDataConverter pxConvert = new PixelDataConverter();
+        private readonly List<Camera> allCameras = [];
+        private readonly PixelDataConverter pxConvert = new();
         private bool isGrabbing;
         private bool isCameraOpen = false;
 
-        public BaslerCamera(Main form)
-        {
-            this.form = form;
-        }
-
         public void CameraInit()
         {
             var allCameraInfos = CameraFinder.Enumerate();
diff --git a/Camera_connect/Main.cs b/Camera_connect/Main.cs
index de6dcbb..aeebd23 100644
--- a/Camera_connect/Main.cs
+++ b/Camera_connect/Main.cs
@@ -236,7 +236,7 @@ namespace Camera_connect
                             // 更新 PictureBox 圖像
                             pictureBox1.Invoke((MethodInvoker)delegate
                             {
-                                Bitmap oldImage = pictureBox1.Image as Bitmap;
+                                Bitmap? oldImage = pictureBox1.Image as Bitmap;
                                 pictureBox1.Image = image;
                                 oldImage?.Dispose(); // 確保釋放舊的 Bitmap 資源
                             });