7 steps to correct exposure...
NorWood Super Director (Walz)

#1    Adjust the Asa Index setting by turning control crown to show desired ASA or E.I #2    Move Control tab until selected shutter-time is in line with red arrow. #3    Note letter shown in window marked "VALVE" #4    Move the HELIO Valve index to the indicated Valve-letter... NOTE:    Meter is now ready for operation! #5    The 3D Heliosphere should be aimed toward the Camera! #6    The pointer on the meter scale will then directly indicate the correct f-stop to be used on your camera lens.       Just as easy as that! and what's more the resulting picture will have the best possible exposure. #7    Ready for exposure! NO HelioValve? or Maximum Sensivity Adjustment #1    Remove HELIOVALVE from meter. #1    Adjust the calculator valve-window to "S" #1    Adjust the Asa Index setting by turning control crown to show desired ASA or E.I #1    Note the f-stop indicated by the meter pointer. #1    Turn the transparent calculator disk until the observed f-stop number is in line with the red arrow. #1    Select on the shutter-time scale the desired shutter-time number. Note: This meter attains its accuracy because its readings are based solely on INCIDENT LIGHT (The light that falls upon the subject)

Manual S models

Manual later Studio deluxe

Manual Director models

Manual Super Directors

Manual M3

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