Sekonic L-758DR manual EV value → Foot-lambert FL conversion table

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).

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