diff --git a/src/App.jsx b/src/App.jsx
index f423f6f..76022ea 100644
--- a/src/App.jsx
+++ b/src/App.jsx
@@ -136,17 +136,18 @@ const filterDatasetForPlotType = (dataset, plotType) => {
 const PreviewPanel = ({ lensCurves }) => {
   const previewItems = lensCurves.map((curve) => {
     const infinityStat = curve.checkpointStats.find((stat) => !Number.isFinite(stat.separation));
-    const blurPercent = infinityStat?.blurPercentOfDiagonal ?? 0;
+    const blurMm = infinityStat?.blurMm ?? 0;
 
     return {
       lens: curve.lens,
-      blurPercent,
+      blurMm,
+      sensorDiagonal: curve.sensor?.diagonal ?? 1,
       colorIndex: curve.colorIndex,
     };
   });
 
-  const maxBlurPercent = previewItems.reduce((maxValue, item) => Math.max(maxValue, item.blurPercent), 0);
-  const denominator = maxBlurPercent > 0 ? maxBlurPercent : 1;
+  const maxBlurMm = previewItems.reduce((maxValue, item) => Math.max(maxValue, item.blurMm), 0);
+  const denominator = maxBlurMm > 0 ? maxBlurMm : 1;
 
   return (
     <div className="rounded-lg border border-slate-800 bg-slate-900/60 p-4">
@@ -156,7 +157,7 @@ const PreviewPanel = ({ lensCurves }) => {
       ) : (
         <div className="flex flex-wrap justify-center gap-4">
           {previewItems.map((item) => {
-            const normalized = Math.min(item.blurPercent / denominator, 1);
+            const normalized = Math.min(item.blurMm / denominator, 1);
             const diameter = Math.max(18, 30 + normalized * 70);
             const paletteColor = COLOR_PALETTE[item.colorIndex % COLOR_PALETTE.length];
 
@@ -177,7 +178,7 @@ const PreviewPanel = ({ lensCurves }) => {
                 <div className="text-xs text-slate-200">
                   <div className="font-medium text-slate-100">{item.lens.name}</div>
                   <div className="text-[10px] uppercase tracking-wide text-slate-500">
-                    ∞ blur {formatNumber(item.blurPercent, 2)}%
+                    ∞ blur {formatNumber(item.blurMm, 2)} mm
                   </div>
                 </div>
               </div>