User manual SEKONIC AUTO LUMI L-158

[. . . ] Instructions for use Part Designations Sensor (1) Pointer (2) Guide mark (3) Movie scale (4) Shutter speed scale (5) f/number scale (6) DIN scale (7) ASA scale (8) ASA set knob (9) EV scale (10) Dial ring (11) The Auto-Lumi is a very handy carry-around exposure meter. [. . . ] To read out the exposure, rotate the dial ring (11) and set so that the pointer (2) is aligned with the center of the guide mark. The correct exposure wi ll be the combination of the shutter speed scale (5) unit on the dial and the f/numher scale (6) unit. In the illustrated example, f/5. 6 will be the correct exposure at 1/125 sec. and f/8 at 1/60 sec. Dial scales The numbers /2, /4 and /8, etc. on the shutter speed scale (5) signify 1/2, 1/4, 1/8 sec. etc. , and the numbers 1, 2 and 4, etc. , signify 1, 2, 4 sec. , etc. on the ASA scale (8) signify 1600, 3200, etc. Interim scale units The interim units on the dial scales are as follows: Interim values of the ASA scale (8) [DIN scale (7)] Movie scale (4) Measuring the exposure for movie cameras is performed in exactly the same way as that for ordinary still cameras except that the number of frames (8, 16, 32, etc. ) is taken into consideration. Read out the value on the f/number scale (6) which best agrees with the number of frames of the movie camera and then transfer this setting to the camera. With a movie camera shutter open angle of 180°, the standard number of frames for play films is 24, and this is indicated by the black line. [. . . ] If the f/number of the camera is set to 5. 6 at this value, the shutter speed will automatically go to 1/30 sec. [. . . ]