Sekonic L-358 Manuel d'utilisateur télécharger pdf (Page 29)

-25-

6. Advanced Functions

4. How to use the L358 as an incident illuminance (LUX or FC) meter

1. Turn the Lumisphere Retracting ring q to lower it to

the

mark position.

2. Make sure that any compensation (see page 28) is

canceled (

3. Set the meter to EV mode (DIP switch 1) and ISO 100.

4. Place meter parallel to the light source and take a

measurement.

5. Convert the measured EV with a conversion table to

find the brightness level.

☆ EV value → Lux conversion table

-2

-1

0.63

1.3

2.5

5.0

160

320

640

0.88

1.8

3.5

7.1

110

230

450

910

1300

2600

5100

10000

20000

41000

82000

160000

330000

660000

1300000

1800

3600

7200

14000

29000

58000

120000

230000

460000

930000

1900000

Decimal places

0.5

Decimal places

☆ EV value → Foot candle (FC) conversion table

-2

-1

0.06

0.12

0.23

0.46

0.93

1.9

3.7

7.4

0.08

0.16

0.33

0.66

1.3

2.6

5.3

120

240

480

950

1900

3800

7600

15000

30000

61000

120000

170

340

670

1300

2700

5400

11000

22000

43000

86000

170000

0.5

Decimal places

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 51 52

Commentaires sur ces manuels

Pas de commentaire

Sekonic L-358 Manuel d'utilisateur Page 29

Commentaires sur ces manuels