diff --git a/src/app.py b/src/app.py
index 7d867d2..3b9e85c 100644
--- a/src/app.py
+++ b/src/app.py
@@ -1,3 +1,4 @@
+import logging
 from collections.abc import Generator
 from datetime import UTC, datetime
 from typing import Any
@@ -9,6 +10,9 @@ from src.camera import camera
 app = Flask(__name__)
 
 
+logging.basicConfig(level=logging.INFO)
+
+
 @app.get("/heartbeat")
 def heartbeat() -> tuple[Response, int]:
     return (
diff --git a/src/camera.py b/src/camera.py
index 234f8d8..61687d3 100644
--- a/src/camera.py
+++ b/src/camera.py
@@ -54,22 +54,25 @@ class Camera:
 
     def _capture_loop(self) -> None:
         assert self._picam is not None
-        # warm up — let the sensor settle
         self._stop_event.wait(0.5)
-        logger.info("Capture loop started")
+        logger.info("Capture loop: starting")
 
         while not self._stop_event.is_set():
             try:
-                # capture raw numpy array then encode to JPEG manually
+                logger.info("Capture loop: attempting capture_array")
                 array = self._picam.capture_array("main")
+                logger.info(f"Capture loop: got array {array.shape}")
                 buffer = io.BytesIO()
                 img = Image.fromarray(array)
                 img.save(buffer, format="JPEG", quality=85)
+                frame = buffer.getvalue()
+                logger.info(f"Capture loop: encoded JPEG {len(frame)} bytes")
                 with self._lock:
-                    self._frame = buffer.getvalue()
-                    self._frame_event.set()  # signal first frame is ready
+                    self._frame = frame
+                    self._frame_event.set()
+                logger.info("Capture loop: frame event set")
             except Exception as e:
-                logger.error(f"Capture error: {e}")
+                logger.error(f"Capture loop ERROR: {e}", exc_info=True)
                 self._stop_event.wait(0.1)
 
     def stop(self) -> None: