diff --git a/src/main/java/org/micromanager/lightsheetmanager/gui/tabs/CameraTab.java b/src/main/java/org/micromanager/lightsheetmanager/gui/tabs/CameraTab.java
index d623104..470935f 100644
--- a/src/main/java/org/micromanager/lightsheetmanager/gui/tabs/CameraTab.java
+++ b/src/main/java/org/micromanager/lightsheetmanager/gui/tabs/CameraTab.java
@@ -23,9 +23,10 @@ public class CameraTab extends Panel implements ListeningPanel {
     private Button btnCustomROI_;
     private Button btnGetCurrentROI_;
     private ComboBox cmbCameraTriggerMode_;
+    private ComboBox cmbFirstCamera_;
 
-    private TabPanel tabPanel_;
-    private LightSheetManager model_;
+    private final TabPanel tabPanel_;
+    private final LightSheetManager model_;
 
     public CameraTab(final LightSheetManager model, final TabPanel tabPanel) {
         tabPanel_ = Objects.requireNonNull(tabPanel);
@@ -39,6 +40,7 @@ private void createUserInterface() {
 
         final Panel pnlROI = new Panel("Imaging ROI");
         final Panel pnlCameraTrigger = new Panel("Camera Trigger Mode");
+        final Panel pnlFirstCamera = new Panel("First Camera");
 
         final Label lblXOffset = new Label("X Offset:");
         final Label lblYOffset = new Label("Y Offset:");
@@ -59,7 +61,10 @@ private void createUserInterface() {
         final CameraLibrary camLib = CameraLibrary.fromString(camera.getDeviceLibrary());
 
         cmbCameraTriggerMode_ = new ComboBox(CameraMode.getAvailableModes(camLib),
-              model_.acquisitions().settings().cameraMode().toString());
+                model_.acquisitions().settings().cameraMode().toString());
+
+        cmbFirstCamera_ = new ComboBox(model_.devices().getImagingCameraNames(),
+                model_.devices().getFirstImagingCamera().toString());
 
         pnlROI.add(btnUnchangedROI_, "span 2, wrap");
         pnlROI.add(btnFullROI_, "");
@@ -74,10 +79,12 @@ private void createUserInterface() {
         pnlROI.add(btnGetCurrentROI_, "span 2");
 
         pnlCameraTrigger.add(cmbCameraTriggerMode_, "");
+        pnlFirstCamera.add(cmbFirstCamera_, "");
 
         add(lblTitle, "wrap");
         add(pnlROI, "wrap");
-        add(pnlCameraTrigger, "growx");
+        add(pnlCameraTrigger, "wrap, growx");
+        add(pnlFirstCamera, "growx");
     }
 
     private void createEventHandlers() {
@@ -91,8 +98,12 @@ private void createEventHandlers() {
             //System.out.println("getCameraMode: " + model_.acquisitions().getAcquisitionSettings().getCameraMode());
         });
 
-        //model_.studio().core().setROI();
+        // select primary camera
+        cmbFirstCamera_.registerListener(e -> {
 
+        });
+
+        //model_.studio().core().setROI();
     }
 
     @Override
diff --git a/src/main/java/org/micromanager/lightsheetmanager/model/DeviceManager.java b/src/main/java/org/micromanager/lightsheetmanager/model/DeviceManager.java
index 01fe16c..27d6219 100644
--- a/src/main/java/org/micromanager/lightsheetmanager/model/DeviceManager.java
+++ b/src/main/java/org/micromanager/lightsheetmanager/model/DeviceManager.java
@@ -28,7 +28,9 @@
 
 import javax.swing.JFrame;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.concurrent.ConcurrentHashMap;
@@ -265,8 +267,8 @@ public CameraBase getImagingCamera(final int view, final int num) {
         return (CameraBase)deviceMap_.get(cameraName);
     }
 
-    public CameraBase[] getImagingCameras() {
-        ArrayList<CameraBase> cameraNames = new ArrayList<>();
+    public String[] getImagingCameraNames() {
+        List<String> names = new ArrayList<>();
         final LightSheetDeviceManager adapter = model_.devices().adapter();
         final int numImagingPaths = adapter.numImagingPaths();
         final int numCameras  = adapter.numSimultaneousCameras();
@@ -280,10 +282,17 @@ public CameraBase[] getImagingCameras() {
                 if (numCameras > 1) {
                     cameraName += String.valueOf(j + 1);
                 }
-                cameraNames.add((CameraBase)deviceMap_.get(cameraName));
+                names.add(cameraName);
             }
         }
-        return cameraNames.toArray(new CameraBase[0]);
+        return names.toArray(String[]::new);
+    }
+
+    public CameraBase[] getImagingCameras() {
+        return Arrays.stream(getImagingCameraNames())
+                .map(name -> (CameraBase)deviceMap_.get(name))
+                .filter(Objects::nonNull)
+                .toArray(CameraBase[]::new);
     }
 
 //    public DeviceBase getImagingCamera() {