diff --git a/controllers/camera_controller.py b/controllers/camera_controller.py
index 3bd212d..ed186c0 100644
--- a/controllers/camera_controller.py
+++ b/controllers/camera_controller.py
@@ -1,11 +1,14 @@
-import gphoto2 as gp
+# import gphoto2 as gp
 import numpy as np
 import cv2
 
 from PySide6.QtCore import QObject, QThread, Signal
 from PySide6.QtGui import QImage, QPixmap
 
-
+# try:
+    # import gphoto2 as gp
+# except:
+from . import mock_gphoto as gp
 
 class CameraWorker(QObject):
     frameReady = Signal(QPixmap)
@@ -20,7 +23,7 @@ class CameraWorker(QObject):
     def start_camera(self):
         """Uruchom kamerę i zacznij pobierać klatki"""
         try:
-            self.camera = gp.Camera()
+            self.camera = gp.Camera()   # type: ignore
             self.camera.init()
             self.running = True
             self._capture_loop()
@@ -81,7 +84,7 @@ class CameraController(QObject):
         self.worker.errorOccurred.connect(self.errorOccurred)
 
         # sygnały start/stop
-        self.camera_thread .started.connect(self.worker.start_camera)
+        self.camera_thread.started.connect(self.worker.start_camera)
 
     def start(self):
         """Start kamery w osobnym wątku"""
diff --git a/controllers/main_controller.py b/controllers/main_controller.py
index bc82411..b84a8c3 100644
--- a/controllers/main_controller.py
+++ b/controllers/main_controller.py
@@ -1,10 +1,11 @@
+from PySide6.QtWidgets import QPushButton
 from pathlib import Path
 from core.database import DatabaseManager
 from core.media import MediaRepository
 from ui.widgets.color_list_widget import ColorListWidget
 from ui.widgets.thumbnail_list_widget import ThumbnailListWidget
 from ui.widgets.split_view_widget import SplitView
-from PySide6.QtWidgets import QPushButton
+from .camera_controller import CameraController
 
 
 class MainController:
@@ -14,6 +15,8 @@ class MainController:
         self.media_repo = MediaRepository(self.db)
         self.media_repo.sync_media()
 
+        self.camera_controller = CameraController()
+
         self.view = view
         self.color_list: ColorListWidget = view.color_list_widget
         self.thumbnail_list: ThumbnailListWidget = view.thumbnail_widget
@@ -26,6 +29,13 @@ class MainController:
         self.color_list.editColor.connect(self.on_edit_color)
         self.thumbnail_list.selectedThumbnail.connect(self.on_thumbnail_selected)
 
+        self.camera_controller.errorOccurred.connect(self.split_view.widget_start.set_info_text)
+        self.camera_controller.frameReady.connect(self.split_view.set_live_image)
+        self.split_view.widget_start.camera_start_btn.clicked.connect(self.camera_controller.start)
+
+    def start_camera(self):
+        pass
+
     def load_colors(self) -> None:
         colors = self.db.get_all_colors()
         print("Loaded colors:", colors)
diff --git a/controllers/mock_gphoto.py b/controllers/mock_gphoto.py
new file mode 100644
index 0000000..bbe6bc5
--- /dev/null
+++ b/controllers/mock_gphoto.py
@@ -0,0 +1,64 @@
+import cv2
+import numpy as np
+
+class GPhoto2Error(Exception):
+    pass
+
+
+class CameraFileMock:
+    """Mock obiektu zwracanego przez gphoto2.Camera.capture_preview()"""
+
+    def __init__(self, frame: np.ndarray):
+        # Kodowanie do JPEG, żeby symulować prawdziwe dane z kamery
+        success, buf = cv2.imencode(".jpg", frame)
+        if not success:
+            raise GPhoto2Error("Nie udało się zakodować ramki testowej.")
+        self._data = buf.tobytes()
+
+    def get_data_and_size(self):
+        return self._data
+        return self._data, len(self._data)
+
+
+class Camera:
+    def __init__(self):
+        self._frame_counter = 0
+        self._running = False
+
+    def init(self):
+        self._running = True
+        print("[my_gphoto] Kamera MOCK zainicjalizowana")
+
+    def exit(self):
+        self._running = False
+        print("[my_gphoto] Kamera MOCK wyłączona")
+
+    def capture_preview(self):
+        if not self._running:
+            raise GPhoto2Error("Kamera MOCK nie jest uruchomiona")
+
+        # przykład 1: wczytaj stały obrazek z pliku
+        # frame = cv2.imread("test_frame.jpg")
+        # if frame is None:
+        #     raise GPhoto2Error("Nie znaleziono test_frame.jpg")
+
+        # przykład 2: wygeneruj kolorową planszę
+        h, w = 480, 640
+        color = (self._frame_counter % 255, 100, 200)
+        frame = np.full((h, w, 3), color, dtype=np.uint8)
+
+        # dodanie napisu
+        text = "OBRAZ TESTOWY"
+        font = cv2.FONT_HERSHEY_SIMPLEX
+        scale = 1.5
+        thickness = 3
+        color_text = (255, 255, 255)
+
+        (text_w, text_h), _ = cv2.getTextSize(text, font, scale, thickness)
+        x = (w - text_w) // 2
+        y = (h + text_h) // 2
+        cv2.putText(frame, text, (x, y), font, scale, color_text, thickness, cv2.LINE_AA)
+
+
+        self._frame_counter += 1
+        return CameraFileMock(frame)