Nikon D70 Bedienungsanleitung PDF herunterladen (Seite 195)

185

Technical Notes—Optional Accessories

Picture angle

Approximate focal length (mm) in 35-mm format

(modiﬁ ed for picture angle)

35-mm ﬁ lm camera 20 24 28 35 50 60 8517

D70 30 36 42 52.5 75 90 127.525.5

35-mm ﬁ lm camera 135 180 200 300 400 500 600105

D70 202.5 270 300 450 600 750 900157.5

Cal cu lat ing Picture Angle

The size of the area exposed by a 35-mm

camera is 36 × 24 mm. The size of the

area exposed by the D70, in contrast,

is 23.7 ×15.6 mm. As a result, the picture

angle of photographs taken with the D70

differs from the picture angle for 35-mm

cameras, even when the focal length of

the lens and the distance to the subject

are the same.

Picture Angle and Focal Length

A 35-mm cam era has a di ag o nal pic ture angle ap prox i mate ly one-and-a-half

times that of the D70. When cal cu lat ing the focal length of lenses for the

D70 in 35-mm format, you will therefore need to mul ti ply the focal length of

the lens by 1.5, as shown in the following table:

Picture size (D70)

Picture size (35-mm format)

Lens

(23.7 mm × 15.6 mm)

Picture diagonal

(36 mm × 24 mm)

Picture angle (35-mm format)

Picture angle (D70)

1 2 ... 190 191 192 193 194 195 196 197 198 199 200 ... 217 218

Keine Kommentare

Nikon D70 Bedienungsanleitung Seite 195