diff --git a/zoneb/bin/data/settings.xml b/zoneb/bin/data/settings.xml
index ec814d2..7c9c085 100644
--- a/zoneb/bin/data/settings.xml
+++ b/zoneb/bin/data/settings.xml
@@ -3,4 +3,5 @@
 	<XY>61.2245, -12.2449</XY>
 	<scale>1.869</scale>
 	<device>video3</device>
+	<thermo_delay>7</thermo_delay>
 </ZONE_B>
diff --git a/zoneb/src/ofApp.cpp b/zoneb/src/ofApp.cpp
index 68d49ad..3b28c3f 100644
--- a/zoneb/src/ofApp.cpp
+++ b/zoneb/src/ofApp.cpp
@@ -50,9 +50,11 @@ void ofApp::setupThermal()
   v4l2Cam.settings(ofxV4L2_AUTOGAIN, set_autogain);
   v4l2Cam.settings(ofxV4L2_GAIN, set_gain);
 
-  // we use a texture because the ofxV4L2 class has no draw method (yet)
-  // we use GL_LUMINANCE because the ofxV4L2 class supports only grayscale (for now)
-  v4l2Tex.allocate(512, 512, GL_RGB);
+  v4l2Buffer.resize(60);
+  for (int i = 0; i < v4l2Buffer.size(); i++)
+  {
+    v4l2Buffer.at(i).allocate(512, 512, GL_RGB);
+  }
 
   v4l2Pixels.allocate(512, 512, OF_PIXELS_RGB);
   for (int i = 0; i < 512; i++)
@@ -125,13 +127,14 @@ void ofApp::setupGui()
   gui.setup("ZONE B", "settings.xml"); // most of the time you don't need a name
   gui.add(registrationXY.setup("XY", {-208, -257}, {-400, -400}, {400, 400}));
   gui.add(registrationScale.setup("scale", 2.0, 0.1, 3));
+  gui.add(v4l2Delay.setup("thermo delay", 0, 0, 59));
   gui.add(captureDeviceName.setup("device", "video3"));
   gui.loadFromFile("settings.xml");
   gui.setPosition(10, 10);
 
   debugGui.setup("DEBUG");
   debugGui.add(calibMode.setup("calib", false));
-  debugGui.add(dummyMode.setup("dummy", true));                      // should be false
+  debugGui.add(dummyMode.setup("dummy", true));                         // should be false
   debugGui.add(dummyXY.setup("XY", {0, 0}, {-500, -1000}, {500, 500})); // should be false
   debugGui.add(debugFps.setup("FPS", "0"));
   debugGui.setPosition(230, 10);
@@ -211,7 +214,9 @@ void ofApp::updateThermal()
         }
       }
     }
-    v4l2Tex.allocate(v4l2Pixels);
+    v4l2Buffer.at(v4l2BufferCount).allocate(v4l2Pixels);
+    v4l2BufferCount = (v4l2BufferCount + 1) % (v4l2Delay + 1);
+
     struct
     {
       bool operator()(ofVec3f a, ofVec3f b) const
@@ -305,7 +310,7 @@ void ofApp::drawMain()
   auto tex = kinectDevice.getDepthTex();
   boundShader.setUniformTexture("u_depth", tex);
   boundShader.setUniformTexture("u_ofcam", fbos.at("ofcam"));
-  boundShader.setUniformTexture("u_v4l2cam", v4l2Tex);
+  boundShader.setUniformTexture("u_v4l2cam", v4l2Buffer.at(v4l2BufferCount));
   boundShader.setUniform1i("u_calib", calibMode == true ? 1 : 0);
   boundShader.setUniform2f("u_calibXY", registrationXY);
   boundShader.setUniform1f("u_calibScale", registrationScale);
@@ -328,7 +333,7 @@ void ofApp::draw()
   {
     particles.whateverImages.at("u_depth") = kinectDevice.getDepthTex();
     particles.whateverImages.at("u_world") = kinectDevice.getDepthToWorldTex();
-    particles.whateverImages.at("u_v4l2cam") = v4l2Tex;
+    particles.whateverImages.at("u_v4l2cam") = v4l2Buffer.at(v4l2BufferCount);
 
     fbos.at("ofcam").begin();
     ofClear(0);
diff --git a/zoneb/src/ofApp.h b/zoneb/src/ofApp.h
index 2fa5991..aee6b49 100644
--- a/zoneb/src/ofApp.h
+++ b/zoneb/src/ofApp.h
@@ -55,6 +55,8 @@ private:
 
   ofxV4L2 v4l2Cam;
   ofTexture v4l2Tex;
+  std::vector<ofTexture> v4l2Buffer;
+  int v4l2BufferCount;
   ofPixels v4l2Pixels;
 
   ofxGpuParticles particles;
@@ -66,6 +68,7 @@ private:
 
   ofxVec2Slider registrationXY;
 	ofxFloatSlider registrationScale;
+	ofxIntSlider v4l2Delay;
 	ofxInputField<std::string> captureDeviceName;
 	ofxPanel gui;