Instruments/Zeiss-Elyra-7.md

@@ -25,7 +25,7 @@
 
 2. If at any point during your experiment a loud beeping sound goes off, first check the CO<sub>2</sub> sensor (and leave the room if the sound is coming from the sensor). If not, the sound is coming from the cooling system behind the Elyra and you need to [refill the cooling liquid](Maintenance/Elyra 7#Cooling-System). 
 
-3. Choose the correct objective you want to use for imaging (via the touch panel, menu point 'Microscope') and press 'Load position' to bring the objective down to its lowest position.
+3. Choose the correct objective you want to use for imaging (via the touch panel, menu point 'Microscope') and press 'Load position' to bring the objective down to its lowest position. For SIM use any 63x objective, for TIRF use only 63x/1.46 NA. 
  
 ![PXL_20240320_100556693](uploads/944433d431b4d0027717cf627607037c/PXL_20240320_100556693.jpg){width=49%}  ![PXL_20240320_100603288](uploads/7243fdb1c0c2344cdd05237a1b72ec56/PXL_20240320_100603288.jpg){width=49%}