diff --git a/lightmeter.ino b/lightmeter.ino
index af1f93d..4529f08 100644
--- a/lightmeter.ino
+++ b/lightmeter.ino
@@ -160,13 +160,13 @@ float setISO=100; //set to ISO
 
 float eeprom_setAperature=0; //set to use aperature. 0 for auto
 float eeprom_setShutter=0; //set to use shutter time, 0 for auto
-uint16_t eeprom_setISO=0; //set to ISO
+float eeprom_setISO=0; //set to ISO
 
 #define EEPROMADDRESS_APERATURE 0x801F000 //float = 32bit = 4byte
 #define EEPROMADDRESS_SHUTTER 0x801F004 //float = 32bit = 4byte
-#define EEPROMADDRESS_ISO 0x801F008 //uint16_T 16bit = 2byte
-#define EEPROMADDRESS_METERINGMODE 0x801F00A //uint8_t  1byte
-#define EEPROMADDRESS_USERSETTINGS 0x801F00B //Settings struct
+#define EEPROMADDRESS_ISO 0x801F008 //float 32bit = 4byte
+#define EEPROMADDRESS_METERINGMODE 0x801F00C //uint8_t  1byte
+#define EEPROMADDRESS_USERSETTINGS 0x801F00D //Settings struct
 
 enum displaymode {
   lightmeter,