Index: source/blender/compositor/operations/COM_ConvertColorToBWOperation.cpp
===================================================================
--- source/blender/compositor/operations/COM_ConvertColorToBWOperation.cpp	(revision 46796)
+++ source/blender/compositor/operations/COM_ConvertColorToBWOperation.cpp	(working copy)
@@ -38,7 +38,7 @@
 {
 	float inputColor[4];
 	inputOperation->read(&inputColor[0], x, y, sampler, inputBuffers);
-	outputValue[0] = (inputColor[0]*0.35f + inputColor[1]*0.45f + inputColor[2]*0.2f)*inputColor[3];
+	outputValue[0] = inputColor[0]*0.35f + inputColor[1]*0.45f + inputColor[2]*0.2f;
 }
 
 void ConvertColorToBWOperation::deinitExecution()
Index: source/blender/compositor/operations/COM_ConvertColourToValueProg.cpp
===================================================================
--- source/blender/compositor/operations/COM_ConvertColourToValueProg.cpp	(revision 46796)
+++ source/blender/compositor/operations/COM_ConvertColourToValueProg.cpp	(working copy)
@@ -38,7 +38,7 @@
 {
 	float inputColor[4];
 	inputOperation->read(&inputColor[0], x, y, sampler, inputBuffers);
-	outputValue[0] = ((inputColor[0] + inputColor[1] + inputColor[2])/3.0f)*inputColor[3];
+	outputValue[0] = (inputColor[0] + inputColor[1] + inputColor[2])/3.0f;
 }
 
 void ConvertColourToValueProg::deinitExecution()