6. Advanced Functions

4.How to use an incident illuminance (LUX or FC) meter (L-758DR/758D)

1.Turn the Lumisphere retracting ring ① to lower it to the

(retracted) mark position.

2. Make sure that any compensation Exposure/Calibration compensation: see page 36 & 37, Compensation of camera exposure profile: see page 46 is canceled.

3.Set the meter to EV mode and ISO 100.

4.Place the meter parallel to the subject and take a

measurement.

5.The measured EV can be converted to find the brightness level with the conversion table below.

* EV value →

Lux conversion table

 

 

 

 

 

 

 

 

 

Decimal places

0

0.5

Decimal places

0

0.5

EV

EV

 

 

 

 

-2

0.63

0.88

9

1300

1800

-1

1.3

1.8

10

2600

3600

0

2.5

3.5

11

5100

7200

1

5.0

7.1

12

10000

14000

2

10

14

13

20000

29000

3

20

28

14

41000

58000

4

40

57

15

82000

120000

5

80

110

16

160000

230000

6

160

230

17

330000

460000

7

320

450

18

660000

930000

8

640

910

19

1300000

1900000

* EV value →

Foot candle (FC) conversion table

 

 

 

 

 

 

 

 

Decimal places

0

0.5

Decimal places

0

0.5

EV

EV

 

 

 

 

-2

0.06

0.08

9

120

170

-1

0.12

0.16

10

240

340

0

0.23

0.33

11

480

670

1

0.46

0.66

12

950

1300

2

0.93

1.3

13

1900

2700

3

1.9

2.6

14

3800

5400

4

3.7

5.3

15

7600

11000

5

7.4

11

16

15000

22000

6

15

21

17

30000

43000

7

30

42

18

61000

86000

8

59

84

19

120000

170000

Reference:

•L-758CINE can read LUX or FC directly when the custom setting function is used (refer to page 40).

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