Operation Manual

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6. Advanced Functions
4. How to use an incident illuminance (LUX or FC) meter (L-558)
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 and ISO 100.
4. Place meter parallel to the subject and take a
measurement.
5. The measured EV can be converted to find the
brightness level with the below conversion table.
* EV value → Foot candle (FC) conversion table
-2
-1
0
1
2
3
4
5
6
7
8
0.06
0.12
0.23
0.46
0.93
1.9
3.7
7.4
15
30
59
0.08
0.16
0.33
0.66
1.3
2.6
5.3
11
21
42
84
9
10
11
12
13
14
15
16
17
18
19
120
240
480
950
1900
3800
7600
15000
30000
61000
120000
170
340
670
1300
2700
5400
11000
22000
43000
86000
170000
EV
0
0.5
0 0.5
Decimal places
EV
Decimal places
Reference:
• L-558 CINE can read LUX or FC directly when the custom setting function is used (refer to
page 32).
* EV value → Lux conversion table
-2
-1
0
1
2
3
4
5
6
7
8
0.63
1.3
2.5
5.0
10
20
40
80
160
320
640
0.88
1.8
3.5
7.1
14
28
57
110
230
450
910
9
10
11
12
13
14
15
16
17
18
19
1800
3600
7200
14000
29000
58000
120000
230000
460000
930000
1900000
EV
EV
Decimal places
0
0.5
0 0.5
Decimal places
1300
2600
5100
10000
20000
41000
82000
160000
330000
660000
1300000