diff --git a/rtengine/CA_correct_RT.cc b/rtengine/CA_correct_RT.cc
index 35e36ce05..0a53ba469 100644
--- a/rtengine/CA_correct_RT.cc
+++ b/rtengine/CA_correct_RT.cc
@@ -111,7 +111,19 @@ bool LinEqSolve(int nDim, double* pfMatr, double* pfVect, double* pfSolution)
 using namespace std;
 using namespace rtengine;
 
-float* RawImageSource::CA_correct_RT(const bool autoCA, const size_t autoIterations, const double cared, const double cablue, const double caautostrength, array2D<float> &rawData, double *fitParamsTransfer, bool fitParamsIn, bool fitParamsOut, float *buffer, bool freeBuffer)
+float* RawImageSource::CA_correct_RT(
+    bool autoCA,
+    size_t autoIterations,
+    double cared,
+    double cablue,
+    double caautostrength,
+    const array2D<float> &rawData,
+    double* fitParamsTransfer,
+    bool fitParamsIn,
+    bool fitParamsOut,
+    float* buffer,
+    bool freeBuffer
+)
 {
 // multithreaded and vectorized by Ingo Weyrich
     constexpr int ts = 128;
@@ -120,14 +132,16 @@ float* RawImageSource::CA_correct_RT(const bool autoCA, const size_t autoIterati
     constexpr int v1 = ts, v2 = 2 * ts, v3 = 3 * ts, v4 = 4 * ts; //, p1=-ts+1, p2=-2*ts+2, p3=-3*ts+3, m1=ts+1, m2=2*ts+2, m3=3*ts+3;
 
     // Test for RGB cfa
-    for(int i = 0; i < 2; i++)
-        for(int j = 0; j < 2; j++)
+    for(int i = 0; i < 2; i++) {
+        for(int j = 0; j < 2; j++) {
             if(FC(i, j) == 3) {
                 printf("CA correction supports only RGB Colour filter arrays\n");
                 return buffer;
             }
+        }
+    }
 
-    volatile double progress = 0.0;
+    double progress = 0.0;
 
     if(plistener) {
         plistener->setProgress (progress);
@@ -159,9 +173,16 @@ float* RawImageSource::CA_correct_RT(const bool autoCA, const size_t autoIterati
     bool processpasstwo = true;
     double fitparams[2][2][16];
 
-    const size_t iterations = autoCA ? std::max(autoIterations, static_cast<size_t>(1)) : 1;
+    const size_t iterations =
+        autoCA
+            ? std::max<size_t>(autoIterations, 1)
+            : 1;
+
     for (size_t it = 0; it < iterations && processpasstwo; ++it) {
-        float blockave[2][2] = {{0, 0}, {0, 0}}, blocksqave[2][2] = {{0, 0}, {0, 0}}, blockdenom[2][2] = {{0, 0}, {0, 0}}, blockvar[2][2];
+        float blockave[2][2] = {};
+        float blocksqave[2][2] = {};
+        float blockdenom[2][2] = {};
+        float blockvar[2][2];
         const bool fitParamsSet = fitParamsTransfer && fitParamsIn;
         if(autoCA && fitParamsSet && iterations < 2) {
             // use stored parameters
diff --git a/rtengine/rawimagesource.h b/rtengine/rawimagesource.h
index 47fc756a9..b9729555b 100644
--- a/rtengine/rawimagesource.h
+++ b/rtengine/rawimagesource.h
@@ -239,7 +239,19 @@ protected:
     inline  void interpolate_row_rb (float* ar, float* ab, float* pg, float* cg, float* ng, int i);
     inline  void interpolate_row_rb_mul_pp (const array2D<float> &rawData, float* ar, float* ab, float* pg, float* cg, float* ng, int i, float r_mul, float g_mul, float b_mul, int x1, int width, int skip);
 
-    float* CA_correct_RT  (const bool autoCA, const size_t autoIterations, const double cared, const double cablue, const double caautostrength, array2D<float> &rawData, double *fitParamsTransfer, bool fitParamsIn, bool fitParamsOut, float * buffer, bool freeBuffer);
+    float* CA_correct_RT(
+        bool autoCA,
+        size_t autoIterations,
+        double cared,
+        double cablue,
+        double caautostrength,
+        const array2D<float> &rawData,
+        double* fitParamsTransfer,
+        bool fitParamsIn,
+        bool fitParamsOut,
+        float* buffer,
+        bool freeBuffer
+    );
     void ddct8x8s(int isgn, float a[8][8]);
     void processRawWhitepoint (float expos, float preser, array2D<float> &rawData);  // exposure before interpolation
 
diff --git a/rtgui/rawcacorrection.cc b/rtgui/rawcacorrection.cc
index 7e75682e0..8c917c910 100644
--- a/rtgui/rawcacorrection.cc
+++ b/rtgui/rawcacorrection.cc
@@ -37,7 +37,7 @@ RAWCACorr::RAWCACorr () : FoldableToolPanel(this, "rawcacorrection", M("TP_CHROM
     caAutocorrect = Gtk::manage (new CheckBox(M("TP_RAWCACORR_AUTO"), multiImage));
     caAutocorrect->setCheckBoxListener (this);
 
-    caAutoiterations = Gtk::manage(new Adjuster (M("TP_RAWCACORR_AUTOIT"), 1, 3, 1, 1));
+    caAutoiterations = Gtk::manage(new Adjuster (M("TP_RAWCACORR_AUTOIT"), 1, 5, 1, 1));
     caAutoiterations->setAdjusterListener (this);
 
     if (caAutoiterations->delay < options.adjusterMaxDelay) {