Reference Manual

275Technical Notes
A Calculating Angle of View
The size of the area exposed by a 35 mm camera is 36 × 24 mm. The
size of the area exposed by the D3500, in contrast, is 23.5 × 15.6 mm,
meaning that the angle of view of a 35 mm camera is approximately
1.5 times that of the D3500. The approximate focal length of lenses for
the D3500 in 35 mm format can be calculated by multiplying the focal
length of the lens by about 1.5.
1 Lens
2 Picture size (35 mm format) (36 × 24 mm)
3 Picture size (D3500) (23.5 × 15.6 mm)
4 Picture diagonal
5 Angle of view (35 mm format)
6 Angle of view (D3500)
1
2
3
4
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