diff --git a/src/instamatic/TEMController/fei_simu_microscope.py b/src/instamatic/TEMController/fei_simu_microscope.py
index a4a9de02..41db8258 100644
--- a/src/instamatic/TEMController/fei_simu_microscope.py
+++ b/src/instamatic/TEMController/fei_simu_microscope.py
@@ -347,9 +347,15 @@ def getCondensorMiniLens(self):
     def getObjectiveLenseCoarse(self):
         return self.objectivelensecoarse_value
 
+    def setObjectiveLenseCoarse(self, value: int):
+        self.objectivelensecoarse_value = value
+
     def getObjectiveLenseFine(self):
         return self.objectivelensefine_value
 
+    def setObjectiveLenseFine(self, value: int):
+        self.objectivelensefine_value = value
+
     def getObjectiveMiniLens(self):
         return self.objectiveminilens_value
 
diff --git a/src/instamatic/TEMController/jeol_microscope.py b/src/instamatic/TEMController/jeol_microscope.py
index d7773bd5..49fbe4fc 100644
--- a/src/instamatic/TEMController/jeol_microscope.py
+++ b/src/instamatic/TEMController/jeol_microscope.py
@@ -522,11 +522,17 @@ def getObjectiveLenseCoarse(self) -> int:
         value, result = self.lens3.GetOLc()
         return value
 
+    def setObjectiveLenseCoarse(self, value: int):
+        self.lens3.SetOLc(value)
+
     def getObjectiveLenseFine(self) -> int:
         # fine objective focus
         value, result = self.lens3.GetOLf()
         return value
 
+    def setObjectiveLenseFine(self, value: int):
+        self.lens3.SetOLf(value)
+
     def getObjectiveMiniLens(self) -> int:
         # no setter
         value, result = self.lens3.GetOM()
diff --git a/src/instamatic/TEMController/simu_microscope.py b/src/instamatic/TEMController/simu_microscope.py
index e9cff040..6d7a4524 100644
--- a/src/instamatic/TEMController/simu_microscope.py
+++ b/src/instamatic/TEMController/simu_microscope.py
@@ -534,8 +534,14 @@ def getCondensorMiniLens(self) -> int:
     def getObjectiveLenseCoarse(self) -> int:
         return self.objectivelensecoarse_value
 
+    def setObjectiveLenseCoarse(self, value: int):
+        self.objectivelensecoarse_value = value
+
     def getObjectiveLenseFine(self) -> int:
         return self.objectivelensefine_value
 
+    def setObjectiveLenseFine(self, value: int):
+        self.objectivelensefine_value = value
+
     def getObjectiveMiniLens(self) -> int:
         return self.objectiveminilens_value