Sekonic STUDIO DELUXE? L-398A Manual de usuario

STUDIO DELUXE Ⅲ

L-398A

Operating Instructions

This manual uses the following safety labels for WARNING and

CAUTION that you must follow.

Indicates hazards or unsafe practices that can re-

sult in severe personal injury or death.

Indicates hazards or unsafe practices that can re-

sult in the personal injury or damage to your L-398A

exposure meter.

•Keep Lumisphere, Lumidisc, Lumigrid or High-

slide out of reach of young children, as swal-

lowing such objects can cause suffocation.

•Please place in a location where an infant can-

not reach and accidentally get the strap

wrapped around his or her neck. There is a

danger of strangulation.

•This L-398A has a powerful magnet. Do not

place it close to the following materials, other-

wise the data stored may be damaged or the

products may malfunction:

Cash cards, floppy disc, other magnetic cards,

TV Set, CRT display or LCD, and other appa-

ratus sensitive to magnetic fields.

SAFETY PRECAUTION

CAUTION

WARNING

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. Lumidisc …………………………………………… 11

Reflected Light Measurement ………………………… 12

1. Lumigrid ……………………………………………… 12

Other Operations ………………………………………… 14

1. Exposure Value (EV numbers) Readout ………… 14

2. Employing Cine Scale ……………………………… 14

3. Using Exposure Multipliers (-2, -1, +1, +2) ……… 15

7. Optional Accessories Operation ……………………… 16

1. Direct Reading Slides ……………………………… 16

2. Direct Reading Slide Application ………………… 17

8. Handling Cautions ……………………………………… 18

CONTENTS

Nearly all photographic subjects combine complex variations of

strongly reflecting surfaces (high reflectivity) and weakly reflecting

surfaces (low reflectivity). These variations delicately influence expo-

sure determination and to which portion the exposure is set becomes

a vital factor that considerably affects the appearance of the finished

photograph.

Although risk of failure can be minimized by taking maximum and

minimum readings of all portions of the subject, then averaging the

values, such an approach is both time consuming and tedious. The

Studio Deluxe Ⅲis the answer to this problem.

1. Optimum exposure meter for incident light measuring method (also

applicable for reflected light method.)

2. Freely rotatable light sensor section for very easily performed

measurements.

3. Meter stopper mechanism allows operation while hand is released

from meter.

4. Meter release mechanism is also included which allows the needle

to deflect freely. This provides greater convenience when deter-

mining light balance.

5. Memo pointer enables easier light balance setting.

6. Lumisphere detects the same light as strikes the subject. Since

subjects are normally 3-dimensional, according to the lighting con-

ditions, brighter surfaces (highlights) and darker surfaces (shad-

ows) are produced (illumination contrast). The Studio Deluxe Ⅲ

mechanism automatically takes into account the strength of light

from all directions, causing the meter to indicate a value appli-

cable to photography. It is thus most convenient for determining

typical exposures.

7. After combining film sensitivity and shutter speed, direct reading

slides (optional) can be used for directly determining the aperture

valve.

8. AMORPHOUS PHOTOSENSOR is employed as light sensing

element, eliminating need for battery.

9. Wide selection of available accessories allows numerous photo-

graphic techniques to be enjoyed.

1. FEATURES

11.4

051020

2.8

40 80

320

640

1.25K

5.6

INCIDENT

LIGHT

160

•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 malfunc-

tion: Cash cards and other magnetic cards,

floppy disk, TV Set, CRT display, and other

apparatus sensitive to magnetic fields.

Caution:

AMORPHOUS PHOTOSENSOR

BACK LIGHT

MAIN LIGHT

LUMISPHERE

FILL-IN LIGHT

MAGNET

MICROAMMETER

1. FEATURES

Analog exposure meter for ambient light

Incident light and reflected light

Incident light: Lumisphere and Lumidisc

Reflected light: Lumigrid (30 deg. of light

receiving angle )

Incident light: EV4 to 17

Reflected light: EV9 to 17

ISO 6 to 12,000 (in 1/3 step)

60 sec. to 1/8000 sec. (in full step)

F0.7 to F128 (in 1/3 step)

8, 18, 24, 64, 128

EV1 to 20 (in 1/3 step)

Incident light: C=340 (Lumisphere),

C=250 (Lumidisc)

Reflected light: K=12.5

0℃to 40℃

-20℃to 60℃

112(H) ×58(W) ×34(D) mm

Approx. 190g

2. SPECIFICATIONS

Type

Light receiving method

Light receiving section

Measuring range

(ISO 100)

Film speed

Shutter speed

Aperture value

Cine speed (f/s)

EV (Exposure Value)

Calibration Constant

Operating temperature range

Storage temperature range

Dimensions

Weight

Note: Features and specifications are subject to change without notice.

･

Ⅲ

L-398A

11.4

125

250

500

1/SEC

100

200

ISO

128

CINE

128

5.6

2.8

0.7

1.4

3. PART DESIGNATIONS

Front

Rear

Footcandle scalee

EV scalet

Dial ring!6

Scale marki

Stopper button!3

Stopper

button mark!9

“H” marko

EV marky

Film sensitivity

selector knob@0

Memo

pointer!7

Needle!8

ISO mark!1

Strap eyelet@5

Dial scaleu

Lumispherq

Light sensorw

Aperture value

(for direct reading)r

ISO scale!0

Cine scale!2

Aperture scale!5

Zero adjust screw@1

Shutter speed scale!4

Meter

scale

Dial

scale

Total of 11 direct reading slides

(set of 11 slides in case).

•Keep Lumisphere, Lumidisc, Lumigrid or

High-slide out of reach of young children,

as swallowing such objects can cause suf-

focation.

Warning

4. Accessories

No. 5

HIGH

Lumisphereq

Lumidisc@3

Lumigrid@4

High (H) slide@2

Optional Accessories

(sold separately)

Direct reading slides.

BASIC OPERATION OF METER UNIT

1.Stopper Button Operation

If the stopper button !3 is pressed

when the stopper button mark !9

is set to ○, the meter needle !8

deflects according to brightness.

Then when the button is released,

the needle remains fixed at the

indicated position.

By holding the stopper button de-

pressed 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-clock-

wise to where the mark is posi-

tioned ○.

2.Zero Position Check and

Adjustment

With stopper button in released ○

position, cover light sensor with

hand or black cloth to completely

block light. Check that meter

needle !8 correctly indicates zero

position. 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 indi-

cation.

･

11.4

100

200

250

500

1/SEC

ISO

128

CINE

128

0.7

1.4

･

11.4

100

200

250

500

1/SEC

ISO

128

CINE

128

0.7

1.4

･

Ⅲ

L-398A

11.4

125

250

500

1/SEC

100

200

ISO

128

CINE

128

2.8

0.7

1.4

・

Black cloth

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