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L L-47 L.6 ( L.6.1 ) ( L. 6.2 ) ( L.6.3 ) ( L.6.4 ) L.6.5 ( ) L.6.1 L-6-1(a) ( ) (unpolarized) L-6-1(b) L-6-1

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  • L

    L-47

    L.6 ��

    ( L.6.1 )

    ( L.

    6.2 )

    ( L.6.3 )

    (

    L.6.4 ) L.6.5

    ( )

    L.6.1

    L-6-1(a)

    (

    )

    (unpolarized)

    L-6-1(b)

    L-6-1

  • L-48

    L-6-1 (c) (d)

    (polarized)

    (

    )

    L-6-2

    G

    W

    L.6.2

    L-6-3

    ( L-6-3(a))

    L-

    6-3(b)

    30

    L-6-2 (G M W )

  • L

    L-49

    L.6.3

    L-

    6-4(a)

    (

    )

    ( )

    (

    )

    (

    )

    L-6-4(b)

    L-6-4(b)

    L-6-3

    (a) (b)

  • L-50

    90

    L-6-4(c)

    ( L-6-4

    (b))

    ( L-6-4(c))

    75%

    25%

    75 25 45

    62 38 135

    88 12

    25%

    ISO

    10 EV

    ( 2.5 EV)

    10 EV

    1 EV

    9 EV

    L-6-4

    (a) ( b )

    ( c )

  • L

    L-51

    2.25 EV = 9× 0.25

    9 EV

    45

    38% ( 3.42 EV = 9 ×

    0.38)

    13.68

    EV ( 9 EV)

    135 12% (

    1.08 EV = 9×0.12)

    4.32 EV ( 9 EV

    )

    135 12%

    ( 25%) 12%

    (

    Olympus E10 E20)

    L.6.4

    (

    )

    ( )

    (quarter-wave retardation plate)

    45

    L-6-5 A

    B

    C

    L-6-5

  • L-52

    (circularly polarized)

    L-6-5

    D

    D

    L.6.5