diff --git a/openflexure_microscope/camera/base.py b/openflexure_microscope/camera/base.py
index 3cd12770..ea961629 100644
--- a/openflexure_microscope/camera/base.py
+++ b/openflexure_microscope/camera/base.py
@@ -137,12 +137,16 @@ class BaseCamera(metaclass=ABCMeta):
     @abstractmethod
     def apply_config(self, config: dict):
         """Update settings from a config dictionary"""
-        pass
+        with self.lock:
+            # Apply valid config params to camera object
+            for key, value in config.items():  # For each provided setting
+                if hasattr(self, key):  # If the instance has a matching property
+                    setattr(self, key, value)  # Set to the target value
 
     @abstractmethod
     def read_config(self) -> dict:
         """Return the current settings as a dictionary"""
-        pass
+        return {"paths": self.paths}
 
     def __enter__(self):
         """Create camera on context enter."""
diff --git a/openflexure_microscope/camera/mock.py b/openflexure_microscope/camera/mock.py
index 941499bb..9fb7db0b 100644
--- a/openflexure_microscope/camera/mock.py
+++ b/openflexure_microscope/camera/mock.py
@@ -75,12 +75,16 @@ class MockStreamer(BaseCamera):
         Return config dictionary of the PiCameraStreamer.
         """
 
-        conf_dict = {
+        # Get config items from the base class
+        conf_dict = BaseCamera.read_config(self)
+
+        # Include device-specific config items
+        conf_dict.update({
             "stream_resolution": self.stream_resolution,
             "image_resolution": self.image_resolution,
             "numpy_resolution": self.numpy_resolution,
             "jpeg_quality": self.jpeg_quality,
-        }
+        })
 
         return conf_dict
 
diff --git a/openflexure_microscope/camera/pi.py b/openflexure_microscope/camera/pi.py
index 89b9cefe..d1654186 100644
--- a/openflexure_microscope/camera/pi.py
+++ b/openflexure_microscope/camera/pi.py
@@ -109,15 +109,20 @@ class PiCameraStreamer(BaseCamera):
         Return config dictionary of the PiCameraStreamer.
         """
 
-        conf_dict = {
+        # Get config items from the base class
+        conf_dict = BaseCamera.read_config(self)
+
+        # Include device-specific config items
+        conf_dict.update({
             "stream_resolution": self.stream_resolution,
             "image_resolution": self.image_resolution,
             "numpy_resolution": self.numpy_resolution,
             "jpeg_quality": self.jpeg_quality,
             "picamera_settings": {},
-        }
+        })
 
-        # PiCamera parameters
+        # Include a subset of picamera properties
+        # TODO: Expand this subset so we have more metadata?
         for key in PiCameraStreamer.picamera_settings_keys:
             try:
                 value = getattr(self.camera, key)