diff --git a/DeviceAdapters/ABS/ABSCamera.cpp b/DeviceAdapters/ABS/ABSCamera.cpp
index 1d81af752..f1199c9d9 100644
--- a/DeviceAdapters/ABS/ABSCamera.cpp
+++ b/DeviceAdapters/ABS/ABSCamera.cpp
@@ -1258,7 +1258,7 @@ int CABSCamera::InsertImage()
 
   // Important: metadata about the image are generated here:
   Metadata md;
-  md.put("Camera", label);
+  md.put(MM::g_Keyword_Metadata_CameraLabel, label);
   md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
   md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString( imageCounter_ ));
   md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString( (long) GetImageWidth()));
diff --git a/DeviceAdapters/AlliedVisionCamera/AlliedVisionCamera.cpp b/DeviceAdapters/AlliedVisionCamera/AlliedVisionCamera.cpp
index fbc80e37c..d33914664 100644
--- a/DeviceAdapters/AlliedVisionCamera/AlliedVisionCamera.cpp
+++ b/DeviceAdapters/AlliedVisionCamera/AlliedVisionCamera.cpp
@@ -1384,7 +1384,7 @@ void AlliedVisionCamera::insertFrame(VmbFrame_t *frame)
 
         // TODO implement metadata
         Metadata md;
-        md.put("Camera", m_cameraName);
+        md.put(MM::g_Keyword_Metadata_CameraLabel, m_cameraName);
 
         VmbUint8_t *buffer = reinterpret_cast<VmbUint8_t *>(frame->buffer);
         err = GetCoreCallback()->InsertImage(this, buffer, GetImageWidth(), GetImageHeight(), m_currentPixelFormat.getBytesPerPixel(),
diff --git a/DeviceAdapters/AmScope/AmScope.cpp b/DeviceAdapters/AmScope/AmScope.cpp
index cecaf886d..77a043190 100644
--- a/DeviceAdapters/AmScope/AmScope.cpp
+++ b/DeviceAdapters/AmScope/AmScope.cpp
@@ -769,7 +769,7 @@ int AmScope::InsertImage()
    MMThreadGuard g(imgPixelsLock_);
    // Important:  metadata about the image are generated here:
    Metadata md;
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
   md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
   md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString( imageCounter_ ));
   md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString( (long) roiX_));
diff --git a/DeviceAdapters/Andor/Andor.cpp b/DeviceAdapters/Andor/Andor.cpp
index c2dd44805..ef4cbbe2b 100644
--- a/DeviceAdapters/Andor/Andor.cpp
+++ b/DeviceAdapters/Andor/Andor.cpp
@@ -5780,7 +5780,7 @@ unsigned int AndorCamera::PopulateROIDropdownFVB()
       // remove first .put deprecated and check if any changes. Perhaps take 5seq MDA first using current build, then rebuild and check difference
       // Check both MM Metadata, and .text file generated by stack images.
       // add SRRF - may need better timings, perhaps a new m_var_ but can decide during impl.
-      //md.put("Camera", label);
+      //md.put(MM::g_Keyword_Metadata_CameraLabel, label);
       //md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timestamp - startTime_).getMsec()));
       //md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString(imageCounter_));
       //md.put(MM::g_Keyword_Binning, binSize_);
diff --git a/DeviceAdapters/Aravis/AravisCamera.cpp b/DeviceAdapters/Aravis/AravisCamera.cpp
index 63ca2ec0d..7c740b3d3 100644
--- a/DeviceAdapters/Aravis/AravisCamera.cpp
+++ b/DeviceAdapters/Aravis/AravisCamera.cpp
@@ -168,7 +168,7 @@ void AravisCamera::AcquisitionCallback(ArvStreamCallbackType type, ArvBuffer *cb
     ArvBufferUpdate(cb_arv_buffer);
 
     // Image metadata.
-    md.put("Camera", "");
+    md.put(MM::g_Keyword_Metadata_CameraLabel, "");
     md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString((long)img_buffer_width));
     md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString((long)img_buffer_height));
     md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString(counter));
diff --git a/DeviceAdapters/Atik/Atik.cpp b/DeviceAdapters/Atik/Atik.cpp
index d5444c358..5165f8385 100644
--- a/DeviceAdapters/Atik/Atik.cpp
+++ b/DeviceAdapters/Atik/Atik.cpp
@@ -880,7 +880,7 @@ int Atik::InsertImage()
 	// Important:  metadata about the image are generated here:
 	Metadata md;
 
-	md.put("Camera", "Atik SDK Camera");
+	md.put(MM::g_Keyword_Metadata_CameraLabel, "Atik SDK Camera");
 
 	string serialised = md.Serialize();
 
diff --git a/DeviceAdapters/Basler/BaslerPylonCamera.cpp b/DeviceAdapters/Basler/BaslerPylonCamera.cpp
index 3e98fe9ba..c6403320e 100644
--- a/DeviceAdapters/Basler/BaslerPylonCamera.cpp
+++ b/DeviceAdapters/Basler/BaslerPylonCamera.cpp
@@ -2127,7 +2127,7 @@ void CircularBufferInserter::OnImageGrabbed(CInstantCamera& /* camera */, const
 
 	// Important:  meta data about the image are generated here:
 	Metadata md;
-	md.put("Camera", "");
+	md.put(MM::g_Keyword_Metadata_CameraLabel, "");
 	md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString((long)ptrGrabResult->GetWidth()));
 	md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString((long)ptrGrabResult->GetHeight()));
 	md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString((long)ptrGrabResult->GetImageNumber()));
diff --git a/DeviceAdapters/BaumerOptronic/BaumerOptronic.cpp b/DeviceAdapters/BaumerOptronic/BaumerOptronic.cpp
index 40cb85a65..6fc0276e4 100644
--- a/DeviceAdapters/BaumerOptronic/BaumerOptronic.cpp
+++ b/DeviceAdapters/BaumerOptronic/BaumerOptronic.cpp
@@ -2273,7 +2273,7 @@ int CBaumerOptronic::SendImageToCore()
    char label[MM::MaxStrLength];
    this->GetLabel(label);
    Metadata md;
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
 
    int err = WaitForImageAndCopyToBuffer();
    if (err != DEVICE_OK)
diff --git a/DeviceAdapters/DahengGalaxy/ClassGalaxy.cpp b/DeviceAdapters/DahengGalaxy/ClassGalaxy.cpp
index f6068fda8..55414a544 100644
--- a/DeviceAdapters/DahengGalaxy/ClassGalaxy.cpp
+++ b/DeviceAdapters/DahengGalaxy/ClassGalaxy.cpp
@@ -1859,7 +1859,7 @@ void CircularBufferInserter::DoOnImageCaptured(CImageDataPointer& objImageDataPo
     //dev_->AddToLog("OnImageGrabbed");
     // Important:  meta data about the image are generated here:
     Metadata md;
-    md.put("Camera", "");
+    md.put(MM::g_Keyword_Metadata_CameraLabel, "");
     md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString((long)objImageDataPointer->GetWidth()));
     md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString((long)objImageDataPointer->GetHeight()));
     md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString((long)objImageDataPointer->GetFrameID()));
diff --git a/DeviceAdapters/DemoCamera/DemoCamera.cpp b/DeviceAdapters/DemoCamera/DemoCamera.cpp
index c0444e2e0..cde5082f7 100644
--- a/DeviceAdapters/DemoCamera/DemoCamera.cpp
+++ b/DeviceAdapters/DemoCamera/DemoCamera.cpp
@@ -1092,7 +1092,7 @@ int CDemoCamera::InsertImage()
  
    // Important:  metadata about the image are generated here:
    Metadata md;
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
    md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString( (long) roiX_)); 
    md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString( (long) roiY_)); 
diff --git a/DeviceAdapters/Fli/FirstLightImagingCameras.cpp b/DeviceAdapters/Fli/FirstLightImagingCameras.cpp
index b85ab904c..48ad3912d 100644
--- a/DeviceAdapters/Fli/FirstLightImagingCameras.cpp
+++ b/DeviceAdapters/Fli/FirstLightImagingCameras.cpp
@@ -217,7 +217,7 @@ void FirstLightImagingCameras::imageReceived(const uint8_t* image)
 	Metadata md;
 	char label[MM::MaxStrLength];
 	GetLabel(label);
-	md.put("Camera", label);
+	md.put(MM::g_Keyword_Metadata_CameraLabel, label);
 	md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString((long)w));
 	md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString((long)h));
 
diff --git a/DeviceAdapters/Hikrobot/HikrobotCamera.cpp b/DeviceAdapters/Hikrobot/HikrobotCamera.cpp
index 24fba34f9..353c4f78e 100644
--- a/DeviceAdapters/Hikrobot/HikrobotCamera.cpp
+++ b/DeviceAdapters/Hikrobot/HikrobotCamera.cpp
@@ -1541,7 +1541,7 @@ void HikrobotCamera::ImageRecvThreadProc()
 
 			//!fix , md must assign something
 			Metadata md;
-			md.put("Camera", "");
+			md.put(MM::g_Keyword_Metadata_CameraLabel, "");
 
 			nRet = GetCoreCallback()->InsertImage(this, (const unsigned char*)stConvertParam.pDstBuffer,
 				stOutFrame.stFrameInfo.nWidth,
diff --git a/DeviceAdapters/IDSPeak/IDSPeak.cpp b/DeviceAdapters/IDSPeak/IDSPeak.cpp
index 310ade461..89c6dad8d 100644
--- a/DeviceAdapters/IDSPeak/IDSPeak.cpp
+++ b/DeviceAdapters/IDSPeak/IDSPeak.cpp
@@ -1178,7 +1178,7 @@ int CIDSPeak::InsertImage()
 
     // Important:  metadata about the image are generated here:
     Metadata md;
-    md.put("Camera", label);
+    md.put(MM::g_Keyword_Metadata_CameraLabel, label);
     md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
     md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString((long)roiX_));
     md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString((long)roiY_));
diff --git a/DeviceAdapters/IDS_uEye/IDS_uEye.cpp b/DeviceAdapters/IDS_uEye/IDS_uEye.cpp
index 750d239c2..d88cda6b8 100644
--- a/DeviceAdapters/IDS_uEye/IDS_uEye.cpp
+++ b/DeviceAdapters/IDS_uEye/IDS_uEye.cpp
@@ -1311,7 +1311,7 @@ int CIDS_uEye::InsertImage()
    */
 
    // Add our own metadata
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
    md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString(imageCounter_));
    md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString( (long) roiX_)); 
diff --git a/DeviceAdapters/IIDC/MMIIDCCamera.cpp b/DeviceAdapters/IIDC/MMIIDCCamera.cpp
index abd4a9444..c9eafc165 100644
--- a/DeviceAdapters/IIDC/MMIIDCCamera.cpp
+++ b/DeviceAdapters/IIDC/MMIIDCCamera.cpp
@@ -2071,7 +2071,7 @@ MMIIDCCamera::ProcessedSequenceCallback(const void* pixels,
 
    char label[MM::MaxStrLength];
    GetLabel(label);
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
 
 #ifndef _WIN32
    // The Windows CMU backend does not provide a valid timestamp (the field
diff --git a/DeviceAdapters/MatrixVision/mvIMPACT_Acquire_Device.cpp b/DeviceAdapters/MatrixVision/mvIMPACT_Acquire_Device.cpp
index b5d2a488e..9150fd222 100644
--- a/DeviceAdapters/MatrixVision/mvIMPACT_Acquire_Device.cpp
+++ b/DeviceAdapters/MatrixVision/mvIMPACT_Acquire_Device.cpp
@@ -967,7 +967,7 @@ int mvIMPACT_Acquire_Device::InsertImage( void )
    Metadata md;
    char label[MM::MaxStrLength];
    GetLabel( label );
-   md.put( "Camera", label );
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label );
    MM::MMTime timeStamp = readoutStartTime_;
    md.put( MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString( ( timeStamp - sequenceStartTime_ ).getMsec() ) );
    md.put( MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString( static_cast<long>( pCurrentRequest_->infoFrameID.read() ) ) );
diff --git a/DeviceAdapters/Mightex_C_Cam/Mightex_USBCamera.cpp b/DeviceAdapters/Mightex_C_Cam/Mightex_USBCamera.cpp
index 852ea683f..6e47d7168 100755
--- a/DeviceAdapters/Mightex_C_Cam/Mightex_USBCamera.cpp
+++ b/DeviceAdapters/Mightex_C_Cam/Mightex_USBCamera.cpp
@@ -1553,7 +1553,7 @@ int CMightex_BUF_USBCCDCamera::InsertImage()
  
    // Important:  metadata about the image are generated here:
    Metadata md;
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
    md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString( (long) roiX_)); 
    md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString( (long) roiY_)); 
diff --git a/DeviceAdapters/OpenCVgrabber/OpenCVgrabber.cpp b/DeviceAdapters/OpenCVgrabber/OpenCVgrabber.cpp
index 42d027286..acdaf1299 100644
--- a/DeviceAdapters/OpenCVgrabber/OpenCVgrabber.cpp
+++ b/DeviceAdapters/OpenCVgrabber/OpenCVgrabber.cpp
@@ -809,7 +809,7 @@ int COpenCVgrabber::InsertImage()
  
    // Important:  metadata about the image are generated here:
    Metadata md;
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
    md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString(imageCounter_));
    md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString( (long) roiX_)); 
diff --git a/DeviceAdapters/PICAM/PICAMUniversal.cpp b/DeviceAdapters/PICAM/PICAMUniversal.cpp
index eacade6f8..f2d0489d1 100644
--- a/DeviceAdapters/PICAM/PICAMUniversal.cpp
+++ b/DeviceAdapters/PICAM/PICAMUniversal.cpp
@@ -2525,7 +2525,7 @@ int Universal::BuildMetadata( Metadata& md )
 
    MM::MMTime timestamp = GetCurrentMMTime();
    md.Clear();
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
 
 #ifdef PICAM_FRAME_INFO_SUPPORTED
    md.PutImageTag<int32>("PICAM-FrameNr", pFrameInfo_->FrameNr);
diff --git a/DeviceAdapters/PVCAM/PVCAMUniversal.cpp b/DeviceAdapters/PVCAM/PVCAMUniversal.cpp
index 87a2ced4e..a87a7a9b3 100644
--- a/DeviceAdapters/PVCAM/PVCAMUniversal.cpp
+++ b/DeviceAdapters/PVCAM/PVCAMUniversal.cpp
@@ -4205,7 +4205,7 @@ int Universal::ProcessNotification( const NotificationEntry& entry )
     {
         // Build the metadata
         Metadata md;
-        md.PutImageTag("Camera", deviceLabel_);
+        md.PutImageTag(MM::g_Keyword_Metadata_CameraLabel, deviceLabel_);
         md.PutImageTag("TimeStampMsec", CDeviceUtils::ConvertToString(frameNfo.TimeStampMsec()));
 
 #ifdef PVCAM_FRAME_INFO_SUPPORTED
diff --git a/DeviceAdapters/PlayerOne/POACamera.cpp b/DeviceAdapters/PlayerOne/POACamera.cpp
index 1ffe8ec4f..91894d391 100644
--- a/DeviceAdapters/PlayerOne/POACamera.cpp
+++ b/DeviceAdapters/PlayerOne/POACamera.cpp
@@ -1371,7 +1371,7 @@ int POACamera::InsertImage()
 
     // Important:  metadata about the image are generated here:
     Metadata md;
-    md.put("Camera", label);
+    md.put(MM::g_Keyword_Metadata_CameraLabel, label);
     md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
     md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString((long)roiX_));
     md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString((long)roiY_));
diff --git a/DeviceAdapters/PyDevice/PyCamera.cpp b/DeviceAdapters/PyDevice/PyCamera.cpp
index 9df8c0a0a..776eb74f8 100644
--- a/DeviceAdapters/PyDevice/PyCamera.cpp
+++ b/DeviceAdapters/PyDevice/PyCamera.cpp
@@ -232,7 +232,7 @@ int CPyCamera::InsertImage()
     char label[MM::MaxStrLength];
     this->GetLabel(label);
     Metadata md;
-    md.put("Camera", label);
+    md.put(MM::g_Keyword_Metadata_CameraLabel, label);
     auto buffer = GetImageBuffer();
     if (!buffer)
         return DEVICE_ERR;
diff --git a/DeviceAdapters/QSI/QSICameraAdapter.cpp b/DeviceAdapters/QSI/QSICameraAdapter.cpp
index c52873ff5..0ac9ff97b 100644
--- a/DeviceAdapters/QSI/QSICameraAdapter.cpp
+++ b/DeviceAdapters/QSI/QSICameraAdapter.cpp
@@ -480,7 +480,7 @@ int QSICameraAdapter::InsertImage()
   // Assemble metadata
   this->GetLabel( label );
   
-  metadata.put( "Camera", label );
+  metadata.put(MM::g_Keyword_Metadata_CameraLabel, label );
 
   pSerializedMetadata =  metadata.Serialize().c_str();
 
diff --git a/DeviceAdapters/RaptorEPIX/RaptorEPIX.cpp b/DeviceAdapters/RaptorEPIX/RaptorEPIX.cpp
index 48466c94a..571859adb 100644
--- a/DeviceAdapters/RaptorEPIX/RaptorEPIX.cpp
+++ b/DeviceAdapters/RaptorEPIX/RaptorEPIX.cpp
@@ -5885,7 +5885,7 @@ int CRaptorEPIX::InsertImage()
       md.PutTag(mst.GetName(), mst.GetDevice(), mst.GetValue());
    }
 */
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
    //md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString(fieldCount_));
    md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString(imageCounter_));
diff --git a/DeviceAdapters/SequenceTester/SequenceTester.cpp b/DeviceAdapters/SequenceTester/SequenceTester.cpp
index 2cc35b4cf..87d638318 100644
--- a/DeviceAdapters/SequenceTester/SequenceTester.cpp
+++ b/DeviceAdapters/SequenceTester/SequenceTester.cpp
@@ -531,7 +531,7 @@ TesterCamera::SendSequence(bool finite, long count, bool stopOnOverflow)
    char label[MM::MaxStrLength];
    GetLabel(label);
    Metadata md;
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    std::string serializedMD(md.Serialize());
 
    const unsigned char* bytes = 0;
diff --git a/DeviceAdapters/SigmaKoki/Camera.cpp b/DeviceAdapters/SigmaKoki/Camera.cpp
index fb2013c3c..8f485a75c 100644
--- a/DeviceAdapters/SigmaKoki/Camera.cpp
+++ b/DeviceAdapters/SigmaKoki/Camera.cpp
@@ -953,7 +953,7 @@ int Camera::InsertImage()
 
 	// Important:  metadata about the image are generated here:
 	Metadata md;
-	md.put("Camera", label);
+	md.put(MM::g_Keyword_Metadata_CameraLabel, label);
 	md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
 	md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString(imageCounter_));
 
diff --git a/DeviceAdapters/Spinnaker/SpinnakerCamera.cpp b/DeviceAdapters/Spinnaker/SpinnakerCamera.cpp
index 1386a89c2..2cae743bf 100644
--- a/DeviceAdapters/Spinnaker/SpinnakerCamera.cpp
+++ b/DeviceAdapters/Spinnaker/SpinnakerCamera.cpp
@@ -1608,7 +1608,7 @@ int SpinnakerCamera::MoveImageToCircularBuffer()
          this->GetLabel(label);
 
          Metadata md;
-         md.put("Camera", label);
+         md.put(MM::g_Keyword_Metadata_CameraLabel, label);
          md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - m_aqThread->GetStartTime()).getMsec()));
          md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString((long)m_cam->Width.GetValue()));
          md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString((long)m_cam->Height.GetValue()));
diff --git a/DeviceAdapters/TISCam/TIScamera.cpp b/DeviceAdapters/TISCam/TIScamera.cpp
index b38d9cf2d..f1ce5e0ee 100644
--- a/DeviceAdapters/TISCam/TIScamera.cpp
+++ b/DeviceAdapters/TISCam/TIScamera.cpp
@@ -2161,7 +2161,7 @@ int CTIScamera::PushImage()
  
    // Important:  metadata about the image are generated here:
    Metadata md;
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
    md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString(imageCounter_));
    md.put(MM::g_Keyword_Binning, binSize_);
diff --git a/DeviceAdapters/TUCam/MMTUCam.cpp b/DeviceAdapters/TUCam/MMTUCam.cpp
index 403834f64..f2fa6dcad 100755
--- a/DeviceAdapters/TUCam/MMTUCam.cpp
+++ b/DeviceAdapters/TUCam/MMTUCam.cpp
@@ -2850,7 +2850,7 @@ int CMMTUCam::InsertImage()
 
     // Important:  metadata about the image are generated here:
     Metadata md;
-    md.put("Camera", label);
+    md.put(MM::g_Keyword_Metadata_CameraLabel, label);
     md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
     md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString( (long) roiX_)); 
     md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString( (long) roiY_)); 
diff --git a/DeviceAdapters/ThorlabsUSBCamera/ThorlabsUSBCamera.cpp b/DeviceAdapters/ThorlabsUSBCamera/ThorlabsUSBCamera.cpp
index 879a7604c..6e64abd4f 100644
--- a/DeviceAdapters/ThorlabsUSBCamera/ThorlabsUSBCamera.cpp
+++ b/DeviceAdapters/ThorlabsUSBCamera/ThorlabsUSBCamera.cpp
@@ -612,7 +612,7 @@ int ThorlabsUSBCam::InsertImage()
    Metadata md;
    char label[MM::MaxStrLength];
    this->GetLabel(label);
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((GetCurrentMMTime() - sequenceStartTime_).getMsec()));
    md.put(MM::g_Keyword_Metadata_ImageNumber, CDeviceUtils::ConvertToString(imageCounter_)); 
 
diff --git a/DeviceAdapters/UniversalMMHubUsb/ummhUsb.cpp b/DeviceAdapters/UniversalMMHubUsb/ummhUsb.cpp
index d9b983ed6..d69ae4f6c 100644
--- a/DeviceAdapters/UniversalMMHubUsb/ummhUsb.cpp
+++ b/DeviceAdapters/UniversalMMHubUsb/ummhUsb.cpp
@@ -3744,7 +3744,7 @@ int UmmhCamera::InsertImage()
  
    // Important:  metadata about the image are generated here:
    Metadata md;
-   md.put("Camera", label);
+   md.put(MM::g_Keyword_Metadata_CameraLabel, label);
    md.put(MM::g_Keyword_Elapsed_Time_ms, CDeviceUtils::ConvertToString((timeStamp - sequenceStartTime_).getMsec()));
    md.put(MM::g_Keyword_Metadata_ROI_X, CDeviceUtils::ConvertToString( (long) roiX_)); 
    md.put(MM::g_Keyword_Metadata_ROI_Y, CDeviceUtils::ConvertToString( (long) roiY_)); 
diff --git a/DeviceAdapters/ZWO/MyASICam2.cpp b/DeviceAdapters/ZWO/MyASICam2.cpp
index d757cc532..86a9b25c3 100644
--- a/DeviceAdapters/ZWO/MyASICam2.cpp
+++ b/DeviceAdapters/ZWO/MyASICam2.cpp
@@ -1147,7 +1147,7 @@ int CMyASICam::InsertImage()
 
 	// Important:  metadata about the image are generated here:
 	Metadata md;
-	md.put("Camera", label);
+	md.put(MM::g_Keyword_Metadata_CameraLabel, label);
 
 	char buf[MM::MaxStrLength];
 	GetProperty(MM::g_Keyword_Binning, buf);
diff --git a/MMCore/CircularBuffer.cpp b/MMCore/CircularBuffer.cpp
index 933142e9b..e23ea89b3 100644
--- a/MMCore/CircularBuffer.cpp
+++ b/MMCore/CircularBuffer.cpp
@@ -256,7 +256,7 @@ bool CircularBuffer::InsertMultiChannel(const unsigned char* pixArray, unsigned
              md = *pMd;
           }
 
-         std::string cameraName = md.GetSingleTag("Camera").GetValue();
+         std::string cameraName = md.GetSingleTag(MM::g_Keyword_Metadata_CameraLabel).GetValue();
          if (imageNumbers_.end() == imageNumbers_.find(cameraName))
          {
             imageNumbers_[cameraName] = 0;
diff --git a/MMCore/CoreCallback.cpp b/MMCore/CoreCallback.cpp
index 7cd1b0e5c..572f9a0ce 100644
--- a/MMCore/CoreCallback.cpp
+++ b/MMCore/CoreCallback.cpp
@@ -223,7 +223,7 @@ CoreCallback::AddCameraMetadata(const MM::Device* caller, const Metadata* pMd)
             core_->deviceManager_->GetDevice(caller));
 
    std::string label = camera->GetLabel();
-   newMD.put("Camera", label);
+   newMD.put(MM::g_Keyword_Metadata_CameraLabel, label);
 
    std::string serializedMD;
    try
diff --git a/MMDevice/DeviceBase.h b/MMDevice/DeviceBase.h
index fc3d80c68..883b7e34b 100644
--- a/MMDevice/DeviceBase.h
+++ b/MMDevice/DeviceBase.h
@@ -1542,7 +1542,7 @@ class CCameraBase : public CDeviceBase<MM::Camera, U>
       char label[MM::MaxStrLength];
       this->GetLabel(label);
       Metadata md;
-      md.put("Camera", label);
+      md.put(MM::g_Keyword_Metadata_CameraLabel, label);
       int ret = GetCoreCallback()->InsertImage(this, GetImageBuffer(), GetImageWidth(),
          GetImageHeight(), GetImageBytesPerPixel(),
          md.Serialize().c_str());
diff --git a/MMDevice/MMDeviceConstants.h b/MMDevice/MMDeviceConstants.h
index 956b05474..62aa53ce6 100644
--- a/MMDevice/MMDeviceConstants.h
+++ b/MMDevice/MMDeviceConstants.h
@@ -143,6 +143,7 @@ namespace MM {
 
 
    // image annotations
+   const char* const g_Keyword_Metadata_CameraLabel = "Camera";
    const char* const g_Keyword_Meatdata_Exposure    = "Exposure-ms";
    const char* const g_Keyword_Metadata_Score       = "Score";
    const char* const g_Keyword_Metadata_ImageNumber = "ImageNumber";