diff --git a/src/main.cpp b/src/main.cpp
index 5e90587..075774e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -58,101 +58,104 @@ int main(int argc, char *argv[])
 {
 	Log::level = Log::WARN;
 
-	QApplication a(argc, argv);
-	QCoreApplication::setOrganizationName("UVOS");
-	QCoreApplication::setOrganizationDomain("uvos.xyz");
-	QCoreApplication::setApplicationName("LubircantThiknessMapperUi");
-	QCoreApplication::setApplicationVersion("0.1");
-
-	QSplashScreen splash(QPixmap(":/images/splash.png"));
-	splash.show();
-
-	QDir().mkpath(Profile::profileLocation());
-
-	qRegisterMetaType<cv::Mat>("cv::Mat");
-	qRegisterMetaType<size_t>("size_t");
-	qRegisterMetaType<Camera::Image>("Camera::Image");
-	qRegisterMetaType<Camera::Image>("Image");
-	qRegisterMetaType<std::vector<Camera::Image>>("std::vector<Camera::Image>");
-
-	QSettings settings(QSettings::IniFormat, QSettings::UserScope, QCoreApplication::organizationName(), QCoreApplication::applicationName());
-
 	uvosled led;
 	int uvosledRet = uvosled_connect(&led);
-
-	if(uvosledRet >= 0)
+	int ret;
+	
 	{
-		qDebug()<<"uvosled_poweron";
-		uvosled_poweron(&led);
-		// Give cameras some time to power on
-		// TODO: figure out how to do this better
-		sleep(10);
+		QApplication a(argc, argv);
+		QCoreApplication::setOrganizationName("UVOS");
+		QCoreApplication::setOrganizationDomain("uvos.xyz");
+		QCoreApplication::setApplicationName("LubircantThiknessMapperUi");
+		QCoreApplication::setApplicationVersion("0.1");
+
+		QSplashScreen splash(QPixmap(":/images/splash.png"));
+		splash.show();
+
+		QDir().mkpath(Profile::profileLocation());
+
+		qRegisterMetaType<cv::Mat>("cv::Mat");
+		qRegisterMetaType<size_t>("size_t");
+		qRegisterMetaType<Camera::Image>("Camera::Image");
+		qRegisterMetaType<Camera::Image>("Image");
+		qRegisterMetaType<std::vector<Camera::Image>>("std::vector<Camera::Image>");
+
+		QSettings settings(QSettings::IniFormat, QSettings::UserScope, QCoreApplication::organizationName(), QCoreApplication::applicationName());
+
+		if(uvosledRet >= 0)
+		{
+			qDebug()<<"uvosled_poweron";
+			uvosled_poweron(&led);
+			// Give cameras some time to power on
+			// TODO: figure out how to do this better
+			sleep(10);
+		}
+
+		Cameras cameras(uvosledRet < 0 ? nullptr : &led);
+		cameras.setFree(false);
+		ImagePipeline pipe(&cameras);
+
+		MainWindow w;
+
+		QObject::connect(&cameras, &Cameras::cameraAdded, &w, &MainWindow::addCamera);
+		QObject::connect(&cameras, &Cameras::cameraRemoved, &w, &MainWindow::removeCamera);
+		QObject::connect(&w, &MainWindow::sigCapture, [&cameras](){cameras.start(); cameras.trigger();});
+
+		QObject::connect(&w, &MainWindow::sigChooseCameras, [&cameras]()
+		{
+			bool accepted;
+			std::vector<cam::Camera::Description> descs = showCameraSelectionDialog(&accepted);
+			if(accepted)
+				cameras.setCameras(descs);
+		});
+
+		QObject::connect(&w, &MainWindow::sigEditProfiles, [&cameras, &w](){showProfileDialog(&cameras); w.refreshProfiles();});
+		QObject::connect(&pipe, &ImagePipeline::sigResult, w.mainImageViewer(), &CvImageViewer::setImage, Qt::QueuedConnection);
+		QObject::connect(&pipe, &ImagePipeline::sigResult, [&w](){w.statusMsg("idle");});
+		QObject::connect(&pipe, &ImagePipeline::sigInvalidProfile, &w, &MainWindow::profileInconpatible);
+
+		QObject::connect(&w, &MainWindow::sigProfile, [&pipe](QString name)
+		{
+			Profile profile;
+			profile.load(name);
+			if(profile.cameras.size() != 0)
+				qDebug()<<"loading profile"<<name<<"with"<<profile.cameras.size()<<"cameras and first camera"<<profile.cameras.at(0).id;
+			else
+				qDebug()<<"empty profile!!";
+			pipe.setProfile(profile);
+		});
+
+		cameras.load(settings);
+
+		splash.hide();
+		w.show();
+
+		if(uvosledRet < 0)
+			QMessageBox::warning(&w, "UVOS LED", "Can not connect to the UVOS LED device");
+
+		if(cameras.getCameras().empty())
+		{
+			QMessageBox::information(&w, "Cameras", "No cameras configured, please choose at least one camera.");
+			cameras.setCameras(showCameraSelectionDialog());
+		}
+
+		QString name = w.getProfileName();
+		if(!name.isEmpty())
+		{
+			Profile profile;
+			profile.load(w.getProfileName());
+			if(profile.cameras.size() != 0)
+				qDebug()<<"loading profile"<<name<<"with"<<profile.cameras.size()<<"cameras and first camera"<<profile.cameras.at(0).id;
+			else
+				qDebug()<<"empty profile!!";
+			pipe.setProfile(profile);
+		}
+
+		ret =  a.exec();
+
+		cameras.store(settings);
 	}
 
-	Cameras cameras(uvosledRet < 0 ? nullptr : &led);
-	cameras.setFree(false);
-	ImagePipeline pipe(&cameras);
-
-	MainWindow w;
-
-	QObject::connect(&cameras, &Cameras::cameraAdded, &w, &MainWindow::addCamera);
-	QObject::connect(&cameras, &Cameras::cameraRemoved, &w, &MainWindow::removeCamera);
-	QObject::connect(&w, &MainWindow::sigCapture, [&cameras](){cameras.start(); cameras.trigger();});
-
-	QObject::connect(&w, &MainWindow::sigChooseCameras, [&cameras]()
-	{
-		bool accepted;
-		std::vector<cam::Camera::Description> descs = showCameraSelectionDialog(&accepted);
-		if(accepted)
-			cameras.setCameras(descs);
-	});
-
-	QObject::connect(&w, &MainWindow::sigEditProfiles, [&cameras, &w](){showProfileDialog(&cameras); w.refreshProfiles();});
-	QObject::connect(&pipe, &ImagePipeline::sigResult, w.mainImageViewer(), &CvImageViewer::setImage, Qt::QueuedConnection);
-	QObject::connect(&pipe, &ImagePipeline::sigResult, [&w](){w.statusMsg("idle");});
-	QObject::connect(&pipe, &ImagePipeline::sigInvalidProfile, &w, &MainWindow::profileInconpatible);
-
-	QObject::connect(&w, &MainWindow::sigProfile, [&pipe](QString name)
-	{
-		Profile profile;
-		profile.load(name);
-		if(profile.cameras.size() != 0)
-			qDebug()<<"loading profile"<<name<<"with"<<profile.cameras.size()<<"cameras and first camera"<<profile.cameras.at(0).id;
-		else
-			qDebug()<<"empty profile!!";
-		pipe.setProfile(profile);
-	});
-
-	cameras.load(settings);
-
-	splash.hide();
-	w.show();
-
-	if(uvosledRet < 0)
-		QMessageBox::warning(&w, "UVOS LED", "Can not connect to the UVOS LED device");
-
-	if(cameras.getCameras().empty())
-	{
-		QMessageBox::information(&w, "Cameras", "No cameras configured, please choose at least one camera.");
-		cameras.setCameras(showCameraSelectionDialog());
-	}
-
-	QString name = w.getProfileName();
-	if(!name.isEmpty())
-	{
-		Profile profile;
-		profile.load(w.getProfileName());
-		if(profile.cameras.size() != 0)
-			qDebug()<<"loading profile"<<name<<"with"<<profile.cameras.size()<<"cameras and first camera"<<profile.cameras.at(0).id;
-		else
-			qDebug()<<"empty profile!!";
-		pipe.setProfile(profile);
-	}
-
-	int ret =  a.exec();
-
-	cameras.store(settings);
-
 	if(uvosledRet >= 0)
 		uvosled_poweroff(&led);