diff --git a/ij/ImageJ.java b/ij/ImageJ.java
index fda53279c..8cc241fa2 100644
--- a/ij/ImageJ.java
+++ b/ij/ImageJ.java
@@ -78,7 +78,7 @@ public class ImageJ extends Frame implements ActionListener,
 
 	/** Plugins should call IJ.getVersion() or IJ.getFullVersion() to get the version string. */
 	public static final String VERSION = "1.52k";
-	public static final String BUILD = "66";
+	public static final String BUILD = "70";
 	public static Color backgroundColor = new Color(237,237,237);
 	/** SansSerif, 12-point, plain font. */
 	public static final Font SansSerif12 = new Font("SansSerif", Font.PLAIN, 12);
diff --git a/ij/gui/HistogramWindow.java b/ij/gui/HistogramWindow.java
index 81ae10d11..37ea030be 100644
--- a/ij/gui/HistogramWindow.java
+++ b/ij/gui/HistogramWindow.java
@@ -96,12 +96,16 @@ public void showHistogram(ImagePlus imp, int bins) {
 		the same as the image range expect for 32 bit images. */
 	public void showHistogram(ImagePlus imp, int bins, double histMin, double histMax) {
 		boolean limitToThreshold = (Analyzer.getMeasurements()&LIMIT)!=0;
+		ImageProcessor ip = imp.getProcessor();
+		if (ip.getMinThreshold()!=ImageProcessor.NO_THRESHOLD
+		&& ip.getLutUpdateMode()==ImageProcessor.NO_LUT_UPDATE)
+			limitToThreshold = false;  // ignore invisible thresholds
 		if (imp.getBitDepth()==24 && rgbMode<INTENSITY1)
 			rgbMode=INTENSITY1;
 		if (rgbMode==RED||rgbMode==GREEN||rgbMode==BLUE) {
 			int channel = rgbMode - 2;
 			ColorProcessor cp = (ColorProcessor)imp.getProcessor();
-			ImageProcessor ip = cp.getChannel(channel, null);
+			ip = cp.getChannel(channel, null);
 			ImagePlus imp2 = new ImagePlus("", ip);
 			imp2.setRoi(imp.getRoi());
 			stats = imp2.getStatistics(AREA+MEAN+MODE+MIN_MAX, bins, histMin, histMax);
diff --git a/ij/plugin/Duplicator.java b/ij/plugin/Duplicator.java
index f4a81dad8..4192df7fa 100644
--- a/ij/plugin/Duplicator.java
+++ b/ij/plugin/Duplicator.java
@@ -193,7 +193,7 @@ public ImagePlus run(ImagePlus imp) {
 		double max = imp.getDisplayRangeMax();
 		ImageStack stack2 = null;
 		int n = stack.getSize();
-		boolean showProgress = virtualStack || (n*stack.getWidth()*stack.getHeight()>=209715200);
+		boolean showProgress = virtualStack || ((double)n*stack.getWidth()*stack.getHeight()>=209715200.0);
 		for (int i=1; i<=n; i++) {
 			if (showProgress) {
 				IJ.showStatus("Duplicating: "+i+"/"+n);
@@ -287,7 +287,7 @@ public ImagePlus run(ImagePlus imp, int firstSlice, int lastSlice) {
 		double max = imp.getDisplayRangeMax();
 		ImageStack stack2 = null;	
 		int n = lastSlice-firstSlice+1;
-		boolean showProgress = virtualStack || (n*stack.getWidth()*stack.getHeight()>=209715200);
+		boolean showProgress = virtualStack || ((double)n*stack.getWidth()*stack.getHeight()>=209715200.0);
 		for (int i=firstSlice; i<=lastSlice; i++) {
 			if (showProgress) {
 				IJ.showStatus("Duplicating: "+i+"/"+lastSlice);
@@ -300,6 +300,7 @@ public ImagePlus run(ImagePlus imp, int firstSlice, int lastSlice) {
 				stack2 = new ImageStack(ip2.getWidth(), ip2.getHeight(), imp.getProcessor().getColorModel());
 			stack2.addSlice(stack.getSliceLabel(i), ip2);
 		}
+		IJ.showProgress(1.0);
 		ImagePlus imp2 = imp.createImagePlus();
 		imp2.setStack("DUP_"+imp.getTitle(), stack2);
 		String info = (String)imp.getProperty("Info");
diff --git a/ij/plugin/ImageInfo.java b/ij/plugin/ImageInfo.java
index e23768426..6730222b2 100644
--- a/ij/plugin/ImageInfo.java
+++ b/ij/plugin/ImageInfo.java
@@ -271,7 +271,14 @@ private String getInfo(ImagePlus imp, ImageProcessor ip) {
 				lower = cal.getCValue((int)lower);
 				upper = cal.getCValue((int)upper);
 			}
-			s += "Threshold: "+d2s(lower)+"-"+d2s(upper)+uncalibrated+"\n";
+			int lutMode = ip.getLutUpdateMode();
+			String mode = "red";
+			switch (lutMode) {
+				case ImageProcessor.BLACK_AND_WHITE_LUT: mode="B&W"; break;
+				case ImageProcessor.NO_LUT_UPDATE: mode="invisible"; break;
+				case ImageProcessor.OVER_UNDER_LUT: mode="over/under"; break;
+			}
+			s += "Threshold: "+d2s(lower)+"-"+d2s(upper)+uncalibrated+" ("+mode+")\n";
 		}
 		ImageCanvas ic = imp.getCanvas();
     	double mag = ic!=null?ic.getMagnification():1.0;
diff --git a/ij/process/FloatProcessor.java b/ij/process/FloatProcessor.java
index d93ec530c..a0e3235dd 100644
--- a/ij/process/FloatProcessor.java
+++ b/ij/process/FloatProcessor.java
@@ -178,22 +178,19 @@ public Image createImage() {
 		
 	// creates 8-bit image by linearly scaling from float to 8-bits
 	private byte[] create8BitImage(boolean thresholding) {
+		//ij.IJ.log("create8BitImage: "+thresholding);
 		int size = width*height;
 		if (pixels8==null)
 			pixels8 = new byte[size];
 		double value;
 		int ivalue;
 		double min2 = getMin(), max2=getMax();
-		int maxValue = 255;
-		double scale = 256.0/(max2-min2);
-		if (thresholding) {
-			maxValue = 254;
-			scale = 255.0/(max2-min2);
-		}
+		double scale = 255.0/(max2-min2);
+		int maxValue = thresholding?254:255;
 		for (int i=0; i<size; i++) {
 			value = pixels[i]-min2;
 			if (value<0.0) value=0.0;
-			ivalue = (int)((value*scale)+0.5f);
+			ivalue = (int)(value*scale);
 			if (ivalue>maxValue) ivalue = maxValue;
 			pixels8[i] = (byte)ivalue;
 		}
diff --git a/release-notes.html b/release-notes.html
index f118b3400..cc7599332 100644
--- a/release-notes.html
+++ b/release-notes.html
@@ -5,7 +5,7 @@
 </head>
 <body>
 
-<li> <u>1.52k66 23 January 2019</u>
+<li> <u>1.52k70 25 January 2019</u>
 <ul>
 <li> Thanks to Albert Cardona and Gabriel Landini, added the "GUI scale (0.5-3.0)" 
 option to the <i>Edit&gt;Options&gt;Appearance</i> dialog, which enables
@@ -51,6 +51,10 @@
 <li> Thanks to 'Bio7', worked around a bug that caused 
 toolbar popup menus to not work with OpenJDK 11 and
 OpenJDK 12 on Windows. 
+<li> Thanks to Ved Sharma, fixed a bug that caused the Histogram
+command to not behave as expected when "Limit to Threshold" was
+enabled in <i>Analyze&gt;Set Measurements</i> and there
+was an invisble threshold.
 <li> Thanks to J Xiong, fixed a 1.52j regression that caused the
 <i>Image&gt;Overlay&gt;From ROI Manager</i> command
 to throw an exception.
@@ -60,6 +64,9 @@
 <li> Thanks to Stein Rorvik, fixed 1.52j regression that
 sometimes caused macro errors to be ignored
 (<a href="http://wsr.imagej.net/macros/MacroErrorsIgnored.txt">examples</a>).
+<li> Thanks to 'yorgodillo', 'mountain_man' and Jan Eglinger, fixed a 
+1.52e regression that caused float to 8-bit conversions to be
+done incorrectly.
 </ul>
 
 <li> <u>1.52j 29 December 2018</u>