STUDIO DELUXE Ⅲ L-398A Operating Instructions
SAFETY PRECAUTION This manual uses the following safety labels for CAUTION that you must follow. WARNING and WARNING Indicates hazards or unsafe practices that can result in severe personal injury or death. CAUTION Indicates hazards or unsafe practices that can result in the personal injury or damage to your L-398A exposure meter. WARNING Lumisphere, Lumidisc, Lumigrid or High• Keep slide out of reach of young children, as swallowing such objects can cause suffocation.
CONTENTS SAFETY PRECAUTION CONTENTS 1. Features …………………………………………………… 1 2. Specifications ……………………………………………… 3 3. Part Designations …………………………………………… 4 4. Accessories ………………………………………………… 5 5. Basic Operation of Meter Unit …………………………… 6 1. Stopper Button Operation …………………………… 6 2. Zero Position Check and Adjustment ……………… 6 3. Memo Pointer Operation ……………………………… 7 6. Standard Accessory Operation …………………………… 8 Incident Light Measurement ……………………………… 8 1. Lumisphere …………………………………………… 8 2.
1. FEATURES Nearly all photographic subjects combine complex variations of strongly reflecting surfaces (high reflectivity) and weakly reflecting surfaces (low reflectivity). These variations delicately influence exposure determination and to which portion the exposure is set becomes a vital factor that considerably affects the appearance of the finished photograph.
1. FEATURES BACK LIGHT MAIN LIGHT AMORPHOUS PHOTOSENSOR LUMISPHERE FILL-IN LIGHT 10 2 .4 320 5.6 5K 16 INCIDENT LIGHT 8 1.2 05 2.8 160 0 11 80 4 64 20 40 MICROAMMETER MAGNET Caution: • 2 Your L-398A has a powerful magnet. Do not place your L-398A close to the following materials, otherwise the data stored may be damaged or the product may malfunction: Cash cards and other magnetic cards, floppy disk, TV Set, CRT display, and other apparatus sensitive to magnetic fields.
2. SPECIFICATIONS Type Analog exposure meter for ambient light Light receiving method Incident light and reflected light Light receiving section Incident light: Lumisphere and Lumidisc Reflected light: Lumigrid (30 deg. of light receiving angle ) Measuring range Incident light: EV4 to 17 (ISO 100) Reflected light: EV9 to 17 Film speed ISO 6 to 12,000 (in 1/3 step) Shutter speed 60 sec. to 1/8000 sec. (in full step) Aperture value F0.
3. PART DESIGNATIONS Front Lumispherq Light sensorw Footcandle scalee Aperture value (for direct reading)r Memo pointer!7 Needle!8 32 EC 1/S 64 EV scalet Dial scaleu Scale marki ISO scale!0 Cine scale!2 Stopper button!3 5 128 CINE 4 8 18 2 250 ISO 45 2.8 00 1k 2k 4k 8k 2 1.4 1 0.
4. Accessories Lumisphereq High (H) slide@2 HIGH Lumidisc@3 Optional Accessories (sold separately) Direct reading slides. No. 5 Lumigrid@4 Total of 11 direct reading slides (set of 11 slides in case). Warning • Keep Lumisphere, Lumidisc, Lumigrid or High-slide out of reach of young children, as swallowing such objects can cause suffocation.
e S 11 1.2 0 160 320 640 40 8 1.2 16 20 +1 +2 -2 -1 0 H 2 EV +1 2 .4 EC ･1 /S k 1 -1 5 ･ ･11 -2 0･ CINE 50 4 12 250 8 50 2 1 64 4 8 18 2 2 60 1 2 5 11 1.2 0 160 320 640 40 8 1 1 0 2 2 1 1 2 + .2 6 0 H +1 2 EV +1 2 1.4 ･1 60 30 12 2 1 64 128 90 15 8 4 200 100 50 ISO 8 2 1.4 1 0.7 F EC 250 8 C I N E 1/S 500 1k 2k 4k 8k -1 1 ･ ･11 -2 0･ 5k 2 + 5 e S 5k 0 200 100 ISO 6 128 90 5 5k 2 + 1 11 8 2 0 1k 2k 4k 8 1.4 1 0.
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. ※ See page 11 for actual use.
6. STANDARD ACCESSORY OPERATION Incident Light Measurement 1. Lumisphere a. Mount Lumisphere q to light sensor w. To mount, align white dots of Lumisphere frame and light sensor, then turn Lumisphere carefully clockwise (approx. 45 deg.)to secure. 12 15 8 4 2 1 4 8 ISO 2 4 4 8 18 2 64 5 12 0 60 2 60 3 0 90 6 c. From position where subject is to be measured, point Lumisphere q in direction of camera. (Light sensor w can be turned freely.) 200 100 50 250 8 C I N E 5 k 1 2.8 00 1k 2k 4k 8 b.
6. STANDARD ACCESSORY OPERATION 320 8 C ISO EC 8 C INE ISO 12 15 8 4 200 100 50 128 2 1 8 24 64 250 60 30 -2 -1 16 1/S 5 5.6 00 1k 2k 4k 8k F 4 2.8 0.7 2 1.4 1 4 640 11 1.2 5k ･･ ･13 2･ 5k 15 90 64 60 30 200 100 50 0 56 40 4 8 2 0 28 Deluxe Ⅲ S tu d i o 5 10 2 0 320 640 1.25 .4 11 80 16 2 -2 -1 k + +1 0 H + 1 14 E V 5 10 20 16 E NE 1/S 2k 4k 8k -1 +1 E -2 ･･ 9 40 11 1.2 +2 7 8 ･･ 16 .2 40 1 06 32 16 0 H 2 2 Deluxe Ⅲ S tu d i o 5 10 2 20 4 0 .
6. STANDARD ACCESSORY OPERATION g. At this time, the shutter speed scale !4 and aperture scale !5 combination becomes the correct exposure. Example:With High slide inserted, meter indicates 80 footcancles. 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. h. 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.
6. STANDARD ACCESSORY OPERATION 2.Lumidisc Employ for illumination contrast adjustment and illuminance measurement. • Contrast measurement a. Mount Lumidisc @3 to light sensor w. Install in the same manner as Lumisphere. (See P. 8) b. Hold meter at subject position and point Lumidisc @3 directly toward center of main light. c. Press stopper button !3 and read meter scale footcandle indication e. d.
6. STANDARD ACCESSORY OPERATION • Illuminance (Lux) measurement a. Mount Limidisc @3 to light sensor w in the same manner as Lumisphere. b. Place Lumidisc @3 parallel with the light source. c. Press stopper button !3 and read meter scale footcandle indication e. d. Multiply this value by 10.76 to obtain lux. Example:80 x 10.76 = 860.8 lux If meter deflects beyond scale, insert High slide @2, then multiply footcandle indication by 32. Example:80 x 32 = 2560 footcandles 2560 x 10.76 = 27545.
6. STANDARD ACCESSORY OPERATION e. Press stopper button !3, and read meter scale footcandle indication e. However, since footcandles are units of incident light only, this value becomes simply a reference. f. Transfer indicated value to dial scale u. Rotate the dial ring !6 and set ▲ H mark o. g. At this time, shutter speed scale !4 and aperture scale !5 combination becomes the correct exposure. Note:Do not employ slides for reflected light measurement.
6. STANDARD ACCESSORY OPERATION Other Operations 1.Exposure Value (EV number) Readout EC 1/S -2 128 ISO 2 2 1 2 4 8 18 2 64 250 15 8 4 CINE 60 3 0 90 64 45 32 2 200 100 50 16 50 k 1 0 0 1k 2k 4k 8 .7 F -1 +1 EV +2 7 ･･ 9 ･･8 .25k 40 1 06 32 H 640 11 1.2 5k 0 L-398A 16 0 80 320 56 40 4 8 0 2 28 0 e D l u x o i e d Ⅲ S tu 51 2 20 4 0 .
6. STANDARD ACCESSORY OPERATION Note: Some cine cameras possess faster exposure times due to a narrower rotating shutter angle (angle of light transmitting portion). It is important to know the accurate shutter angle value versus cine speed for your camera in order to determine proper exposure. Refer to the camera operating instructions, maker’s catalogue, etc. for shutter angle information.
7. Optional Accessories Operation 1.Direct Reading Slides A total of 11 slides are available, all of which may be used together with the Lumisphere and Lumidisc. (Note that they cannot be used with Limigrid.) The High slide, as mentioned previously, is employed for varying the measuring range in 2 steps (high and low illumination), however, it can also be used for direct reading.
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. Read directly the aperture value r indicated by the meter needle !8. ※ Since it is not necessary to rotate the dial when employing direct reading slides, setting becomes extremely fast and convenient.
8. HANDLING CAUTIONS Since the Studio Deluxe Ⅲ is a high precision instrument, use ample care in regard to the following points. • • • • 18 Avoid dropping or subjecting it to strong shock. Do not store in areas subject to magnetic fields or where insect repellants are located (metal cabinets, clothing dressers, etc.). Keep Lumisphere and Lumidisc clean and protect from dust and scratches. Wipe Lumisphere and Lumidisc with a dry soft cloth if it becomes dirty.
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