If you look closely at the photo thre is no preset for the ASA as with battery operated meters or some other seleniums. Using the EV and setting it on the camera just duplicates the meter settings. If not metering for each frame and light conditions are consistent then setting the EV is okay but in my experience better just to meter each frame and transfer the readings. Ot seems easier and faster for me though my Rolleiflex T shutter is designed for using the EV system as the the primary method.