User manual SEKONIC L-398A

[. . . ] Meter stopper mechanism allows operation while hand is released from meter. Meter release mechanism is also included which allows the needle to deflect freely. Since subjects are normally 3-dimensional, according to the lighting conditions, brighter surfaces (highlights) and darker surfaces (shadows) are produced (illumination contrast). The Studio Deluxe mechanism automatically takes into account the strength of light from all directions, causing the meter to indicate a value applicable to photography. [. . . ] By holding the stopper button depressed and turning it clockwise so that the mark position becomes , the needle is released. At this time, the meter will deflect freely even if the stopper button is released. To fix the needle, turn the stopper button counter-clockwise to where the mark is positioned . 0 5 11 5 2 . 4 e S 11 1. 2 160 320 640 40 80 1. 2 16 20 +1 +2 -2 -1 0 H 2 EV +1 5k 5k 2 + 1 200 100 ISO 4 8 18 2 S e 0 5 11 1. 2 0 80 160 320 64 1 0 1 16 0 4 1 +2 -2 -1 2 . 2 0 H + 2 EV +1 2 1. 4 2 2 60 1 64 250 8 50 12 CINE 50 5 1 0 ISO 200 100 50 2 4 8 18 2 25 60 1 64 Black cloth 2. Zero Position Check and Adjustment With stopper button in released position, cover light sensor with hand or black cloth to completely block light. If the indication deviates from zero, while observing meter indication, use a coin or similar tool to turn the rear zero adjust screw @1 and adjust for zero indication. 20 5 10 2 . 4 11 0 1 5 -2 40 28 20 H 80 4 Studio 160 56 Deluxe L-398A 320 8 0 160 320 640 40 80 -2 -1 1. 2 +1 +2 0 640 11 1. 2 16 ISO 45 3 5 8 18 24 0 12 8 15 30 6 4 4 24 6 6 2. 8 250 128 500 1k CINE 200 100 50 2 1. 4 1 0. 7 F 1/S 2k 4k 8k EC 11 12 EV +1 -1 82 1. 4 1 0. 7 F 5k EC 250 8 C I N E 1/S 500 1k 2k 4k 8k 5 11 1 -2 -1 12 8 2 0 1k 2k 4k 8 1. 4 1 0. 7 F 5k 2 + /S k1 0 -2 EC 11 1 -1 60 30 15 8 4 15 8 4 6 128 90 21 60 30 60 30 15 8 4 4 5k 64 128 90 21 5k 2 + 64 128 90 21 5. BASIC OPERATION OF METER UNIT 3. Memo Pointer Operation Rotate both Dial Ring !6 and dial of Memo Pointer !7 to align with Needle !8 position or desirable setting position. To mount, align white dots of Lumisphere frame and light sensor, then turn Lumisphere carefully clockwise (approx. Photo shows setting for ISO 100. ISO 200 100 50 24 4 8 18 2 12 0 60 64 c. From position where subject is to be measured, point Lumisphere q in direction of camera. (Light sensor w can be turned freely. ) 8 250 8 C I N E 5 k1 2. 8 00 1k 2k 4k 8 12 5 2 60 3 0 15 8 4 90 6 21 4 6. When the stopper button is released, the meter needle becomes fixed at the deflected position. If the location is excessively bright and the meter needle deflects beyond scale, insert the High slide @2. ISO 5 10 20 2 -2 ISO 5 81 24 0 12 8 15 30 6 64 18 8 24 45 32 22 16 1 250 12 64 8C INE 200 100 50 EC -1 13 1/S 5 5. 6 00 1k 2k 4k 8k F 4 2. 8 0. 7 2 1. 4 1 0 56 40 4 8 2 0 28 Deluxe Studio 5 10 2 0 320 640 1. 25 . 4 11 80 16 2 -2 -1 k + +1 0 H +1 14 EV 4 NE 200 100 50 1/S 2k 4k 8k e. If the High slide @2 has been inserted, set the H mark o. 160 80 56 40 4 2 0 28 Deluxe Studio 5 10 2 20 40 . 4 5 10 11 -2 -1 +1 +2 L-398A 320 8 80 0 640 11 1. 2 16 5k 16 0 H 2 2 Deluxe Studio 5 10 2 20 40 . 4 80 5 10 11 -2 -1 16 0 +1 +2 H 0 40 11 1. 2 16 5k EC -1 8 9 EV +1 . 2 40 1 06 32 -2 128 90 64 0 +2 7 60 30 15 60 30 640 11 1. 2 16 5k 5k 15 8 4 21 128 90 9 6. At this time, the shutter speed scale !4 and aperture scale !5 combination becomes the correct exposure. At ISO 100, the proper exposure becomes 1/250 sec at F/ 5. 6, 1/30 sec at F/16 and 1 sec at F/90. By changing ISO setting, the set combination of shutter speed and aperture scale is automatically altered to the appropriate one corresponding to the changed ISO value. Meter scale intermediate values Footcandles 125 100 250 200 64 50 50 400 0 4 12 16 8 6 80 40 4 2 0 28 5 10 2 2. 8 2 . 4 11 25 160 56 320 8 80 1k 0 0 640 11 1. 2 16 5k 1. 6 k 2k 2 25 2 20 15 2 8 10 25 50 100 200 50 2 30 60 125 0 80 1k 400500 16 18 14 11 8 13 10 9 7. 1 5. 6 6. 4 . 2 2. 8 2 4 3. 2 2. 5 4. 5 3. 6 5 10k 8k 5k 4k Film sensitivity intermediate values ISO 80 64 3 25020 64 50 0 0 40 0 160 125 200 100 50 25 40 32 20 16 12 8 6 10 10 1. 6 1. 4 1. 8 1. 3 1. 1 0. 8 Intermediate values for Shutter speed and aperture scale 8k 1/SEC 5 4 2 32 28 1 42 6 45 40 3 64 50 128 90 56 112 110 80 72 4k 1 2. 5k 2k 0. 9 1. 6k k 1. 2 1k 800 6. 4k 0. 7F 3. 2k 12k 6. STANDARD ACCESSORY OPERATION 2. Lumidisc Employ for illumination contrast adjustment and illuminance measurement. · Contrast measurement a. Hold meter at subject position and point Lumidisc @3 directly toward center of main light. Turn the memo pointer dial Main light and set the memo pointer !7 at the footcandle value the needle points to. In this case, take care that light from main source does not enter sensor. Read a difference between the footcandle value the Fill-in light memo pointer is set (see above d) and the one for fillin light (= needle position). Ratio between main and fill-in light footcandles becomes the contrast ratio. [. . . ] HIGH slide is standard accessory and not included in the slide set, though there is a space to store it in the case of slide set. · · 16 7. Optional Accessories Operation 2. Direct Reading Slide Application When photographing, select slide from the above table according to film sensitivity and shutter speed. Insert slide and perform measurement in the same manner as for incident light. Since it is not necessary to rotate the dial when employing direct reading slides, setting becomes extremely fast and convenient. 17 8. [. . . ]