6. Advanced Functions

5.How to use a reflected luminance (cd/m2 or FL) meter (L-758DR/758D)

1.Exposure/Calibration compensation: see page 36 & 37, Compensation of camera exposure

profile: see page 46.

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

3.Set meter to spot reading for reflected light.

Take the measurement by looking through the finder and aligning so the subject that will be measured is inside the circle.

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

*

EV value →

cd/m2 conversion table

 

 

 

 

Decimal places

0

0.5

 

Decimal places

0

0.5

EV

 

EV

 

 

 

 

 

 

1

0.25

0.35

 

11

260

360

 

2

0.5

0.7

 

12

510

720

 

3

1

1.4

 

13

1000

1400

 

4

2

2.8

 

14

2000

2900

 

5

4

6

 

15

4100

5800

 

6

8

11

 

16

8200

12000

 

7

16

23

 

17

16000

23000

 

8

32

45

 

18

33000

46000

 

9

64

91

 

19

66000

93000

 

10

130

180

 

 

 

 

*

EV value →

Foot-lambert (FL) conversion table

 

 

 

 

 

 

 

 

 

 

 

Decimal places

0

0.5

 

Decimal places

0

0.5

EV

 

EV

 

 

 

 

 

 

1

0.073

0.10

 

11

75

110

 

2

0.15

0.20

 

12

150

210

 

3

0.30

0.40

 

13

300

420

 

4

0.60

0.80

 

14

600

850

 

5

1.2

1.7

 

15

1200

1700

 

6

2.3

3.3

 

16

2400

3400

 

7

4.7

6.6

 

17

4800

7000

 

8

9.3

13

 

18

9000

14000

 

9

19

26

 

19

19000

27000

 

10

37

53

 

 

 

 

Reference:

•L-758CINE can read cd/m2 or FL directly when the custom setting function is used (refer to page 40).

-35-