C-4

C.2 ��

C-2-1

(a) Fuji F420 (b) Nikon Coolpix 995 (c) Konica Minolta A1

(d) Nikon Coolpix 5700 (e) Panasonic FZ-10

(f) Sony T1

C-2-1

C

C-5

C-2-1(a)

(Fuji) F420

f = 5.6 16.8mm

5.6mm 16.8mm

16.8/5.6 3 (

)

3X

f =

mm ( )

C-2-1(b) Nikon Coolpix 995

8mm 32mm 4X

C-2-1(c) Konica Minolta A1

7.2mm 50.8mm

7X C-2-1(d) Nikon Coolpix

5700 8.9mm 71.2mm

8X

mm

1:

C-2-1(e) Panasonic FZ-10 Leica

( ) 6mm 72mm 12X

C-2-1(f)

Sony T1 Zeiss ( ) 6.7mm

20.1mm 3X

C-2-1

C-1-1 28mm 50mm 100mm

(focal length)

( )

Focal Length 7.2 - 50.8mm (35mm

equivalent 28 - 200mm)

7.2-50.8mm

(actual focal length)

35mm equivalent

(equivalent focal

length)

28mm ( ) 200mm

( )

( )

7.2 28

R R =28 / 7.2=3.89

x x×R

y y /

C-6

R 45mm

45 × 3.89=175mm

135mm 135 / 3.89

= 34.7mm