T2115-美國-21級曝光尺

T2115 Transmission 21-Step Specifications

Step

Target

% Light Transmission

^{*% Light Transmission *}

1

0.05

89.13

¹⁰⁰

2

0.2

63.1

⁷¹

3

0.35

44.67

⁵⁰

4

0.5

31.62

³⁶

5

0.65

22.39

²⁵

6

0.8

15.85

¹⁸

7

0.95

11.22

^12.5

8

1.1

7.943

⁹

9

1.25

5.623

^6.25

10

1.4

3.981

^4.5

11

1.55

2.818

^3.13

12

1.7

1.995

^2.25

13

1.85

1.413

^1.57

14

2

1

^1.12

15

2.15

0.7079

^0.79

16

2.3

0.5012

^0.56

17

2.45

0.3548

^0.4

18

2.6

0.2512

^0.28

19

2.75

0.1778

^0.2

20

2.9

0.1259

^0.14

21

3.05

0.0891

^0.1

*.05 film base is assumed to have 100% transmission*