title: Cannot get multi camera from Nokia 7 plus
body: <p>I use C# xamarin and Nokia 7 plus which install android 9 already. Nokia 7 plus contain zeiss dual back camera. So I think I could get multi camera support</p>
  
  <pre><code>[Activity(Label = "@string/app_name", Theme = "@style/AppTheme", MainLauncher = true)]
  public class MainActivity : AppCompatActivity
  {
      protected override void OnCreate(Bundle savedInstanceState)
      {
          base.OnCreate(savedInstanceState);
          // Set our view from the "main" layout resource
          SetContentView(Resource.Layout.activity_main);
  
          var manager = base.GetSystemService(CameraService) as CameraManager;
          var dict    = manager.GetCameraIdList().ToDictionary((id) =&gt; id,(id) =&gt; manager.GetCameraCharacteristics(id));
  
          var lens = dict.Values.Select((characteristics) =&gt; (
              (LensFacing)((int)characteristics.Get(CameraCharacteristics.LensFacing)),
              characteristics.Get(CameraCharacteristics.RequestAvailableCapabilities).ToArray&lt;RequestAvailableCapabilities&gt;(),
              characteristics.PhysicalCameraIds.ToArray(),
              characteristics.Get(CameraCharacteristics.LensPoseRotation),
              characteristics.Get(CameraCharacteristics.LensPoseTranslation),
              characteristics.Get(CameraCharacteristics.LensIntrinsicCalibration),
              characteristics.Get(CameraCharacteristics.LensRadialDistortion),
              characteristics.Get(CameraCharacteristics.LensPoseReference)
          )).ToArray();
      }
  }
  </code></pre>
  
  <p>This code give me 2 camera with 1 front and 1 back correctly. However the capabilities does not contains <code>LogicalMultiCamera</code>, <code>PhysicalCameraIds</code> is empty set, and all information about lens pose is null</p>
  
  <p>What am I doing wrong here? Or are there any problem about Nokia, Xamarin, or Android SDK?</p>
  
  <p><a href="https://i.stack.imgur.com/PUbTz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/PUbTz.png" alt="enter image description here"></a></p>