diff --git a/meshroom/nodes/aliceVision/LdrToHdrCalibration.py b/meshroom/nodes/aliceVision/LdrToHdrCalibration.py
index 2f6326c7..296fc2b1 100644
--- a/meshroom/nodes/aliceVision/LdrToHdrCalibration.py
+++ b/meshroom/nodes/aliceVision/LdrToHdrCalibration.py
@@ -329,6 +329,6 @@ Calibrate LDR to HDR response curve from samples.
             isoToAperture = math.sqrt(iso / refIso)
 
         newFnumber = fnumber * isoToAperture
-        expIncrease = (newFnumber / lRefFnumber) * (newFnumber / lRefFnumber)
+        expIncrease = (lRefFnumber / newFnumber) * (lRefFnumber / newFnumber)
 
         return shutterSpeed * expIncrease
diff --git a/meshroom/nodes/aliceVision/LdrToHdrMerge.py b/meshroom/nodes/aliceVision/LdrToHdrMerge.py
index 5d3b86c8..2f127a98 100644
--- a/meshroom/nodes/aliceVision/LdrToHdrMerge.py
+++ b/meshroom/nodes/aliceVision/LdrToHdrMerge.py
@@ -415,7 +415,7 @@ Merge LDR images into HDR images.
             isoToAperture = math.sqrt(iso / refIso)
 
         newFnumber = fnumber * isoToAperture
-        expIncrease = (newFnumber / lRefFnumber) * (newFnumber / lRefFnumber)
+        expIncrease = (lRefFnumber / newFnumber) * (lRefFnumber / newFnumber)
 
         return shutterSpeed * expIncrease
 
diff --git a/meshroom/nodes/aliceVision/LdrToHdrSampling.py b/meshroom/nodes/aliceVision/LdrToHdrSampling.py
index 46cbfd43..f2766bd1 100644
--- a/meshroom/nodes/aliceVision/LdrToHdrSampling.py
+++ b/meshroom/nodes/aliceVision/LdrToHdrSampling.py
@@ -357,6 +357,6 @@ Sample pixels from Low range images for HDR creation.
             isoToAperture = math.sqrt(iso / refIso)
 
         newFnumber = fnumber * isoToAperture
-        expIncrease = (newFnumber / lRefFnumber) * (newFnumber / lRefFnumber)
+        expIncrease = (lRefFnumber / newFnumber) * (lRefFnumber / newFnumber)
 
         return shutterSpeed * expIncrease
diff --git a/meshroom/nodes/aliceVision/Texturing.py b/meshroom/nodes/aliceVision/Texturing.py
index 631ab8f4..392e1c20 100644
--- a/meshroom/nodes/aliceVision/Texturing.py
+++ b/meshroom/nodes/aliceVision/Texturing.py
@@ -278,7 +278,7 @@ Many cameras are contributing to the low frequencies and only the best ones cont
             name="correctEV",
             label="Correct Exposure",
             description="Uniformize images exposure values.",
-            value=False,
+            value=True,
             uid=[0],
         ),
         desc.BoolParam(