Sekonic L-398M manual Compensation factor = M + Subject to Compression Enlargement

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Compensation factor = (M + 1)2

 

 

Subject to

Compression

Subject to

Enlargement .

Compensation

Compensation

image ratio

factor

image ratio

Factor

20 : 1

1.10

1 : 1

4

19 : 1

1.11

1 : 1.25

5

18 : 1

1.11

1 : 1.50

6

17 : 1

1.12

1 : 1.75

7.5

16 : 1

1.13

1 : 2

9

15 : 1

1.14

1 : 2.25

10.5

14 : 1

1.15

1 : 2.5

12

13 : 1

1.16

1 : 2.75

14

12 : 1

1.17

1 : 3

16

11 : 1

1.19

1 : 3.5

20

10 : 1

1.21

1 : 4

25

9 : 1

1.24

1 : 4.5

30

8 : 1

1.27

1 : 5

36

7 : 1

1.31

1 : 6

49

6 : 1

1.36

1 : 7

64

5 : 1

1.44

1 : 8

81

4.5 : 1

1.50

1 : 9

100

4 : 1

1.56

1 : 10

121

3.5 : 1

1.65

1 : 1 1

144

3 : 1

1.78

1 : 12

169

2.75: 1

1.86

1 : 13

196

2.5 : 1

1.96

1 : 14

225

2.25: 1

2.09

1 : 15

256

2 : 1

2.25

1 :16

289

1 .75 : 1

2.47

1 : 17

324

1.5 : 1

2.78

1 :18

361

1 .25 : 1

3.24

1 : 19

400

1 : 1

4.00

1 : 20

441

33

Image 34
Contents Sekonic Features Specifications Part Designations Page Page Cine Scale Part Designations Page Stopper Button Operation Incident Light Measurement LumispherePage Page Page Page Other Operations Exposure Value EV number Readout Indication that Employing Special Accessories Page Measurement Examples with Various Subjects Portrait PhotographyObservatorial Scenes Typical SceneryPage Snow Scenes Scenes with Side or Back Lighting Silhouette Photography Applications Summary Illumination Contrast Page Reflected Light Measurement Page Page Illumination Adjustment Stage Adjust luminance range Measuring Method Compensation factor = M + Subject to Compression Enlargement Handling Cautions Sekonic Corporation