diff --git a/rtengine/rtlensfun.cc b/rtengine/rtlensfun.cc
index 665fbd199..7b959ce8b 100644
--- a/rtengine/rtlensfun.cc
+++ b/rtengine/rtlensfun.cc
@@ -500,6 +500,7 @@ std::unique_ptr<LFModifier> LFDatabase::getModifier(const LFCamera &camera, cons
     return ret;
 }
 
+std::set<std::string> LFDatabase::notFound;
 
 std::unique_ptr<LFModifier> LFDatabase::findModifier(const procparams::LensProfParams &lensProf, const FramesMetaData *idata, int width, int height, const procparams::CoarseTransformParams &coarse, int rawRotationDeg)
 {
@@ -521,6 +522,11 @@ std::unique_ptr<LFModifier> LFDatabase::findModifier(const procparams::LensProfP
         return nullptr;
     }
 
+    const std::string key = (make + model + lens).collate_key();
+    if (notFound.find(key) != notFound.end()) {
+        // This combination was not found => do not search again
+        return nullptr;
+    }
     const LFDatabase *db = getInstance();
     LFCamera c = db->findCamera(make, model);
     LFLens l = db->findLens(lensProf.lfAutoMatch() ? c : LFCamera(), lens);
@@ -549,6 +555,10 @@ std::unique_ptr<LFModifier> LFDatabase::findModifier(const procparams::LensProfP
                   << (ret ? ret->getDisplayString() : "NONE") << std::endl;
     }
 
+    if (!ret) {
+        notFound.emplace(key);
+    }
+
     return ret;
 }
 
diff --git a/rtengine/rtlensfun.h b/rtengine/rtlensfun.h
index 7dcd96007..573b93fca 100644
--- a/rtengine/rtlensfun.h
+++ b/rtengine/rtlensfun.h
@@ -21,6 +21,7 @@
 #pragma once
 
 #include <memory>
+#include <set>
 #include <vector>
 
 #include <glibmm/ustring.h>
@@ -135,6 +136,7 @@ private:
     mutable MyMutex lfDBMutex;
     static LFDatabase instance_;
     lfDatabase *data_;
+    static std::set<std::string> notFound;
 };
 
 } // namespace rtengine