To use the meter, assuming it is working correct:
Align the inner dial to your desired ASA (ISO).
Point the sensitive end toward your subject. The needle should move in response to light. (You may have to depress a button on the side of the meter, if it has one.)
Rotate the large dial until the "O" on the dial aligns with the needle. You should now be able to see the various coupled combinations of aperture and shutter speed available to you. Pick the one you'd like to use, and set your camera.
Align the inner dial to your desired ASA (ISO).
Point the sensitive end toward your subject. The needle should move in response to light. (You may have to depress a button on the side of the meter, if it has one.)
Rotate the large dial until the "O" on the dial aligns with the needle. You should now be able to see the various coupled combinations of aperture and shutter speed available to you. Pick the one you'd like to use, and set your camera.



