Nikon D780, Справочное руководство

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Technical Notes
D Calculating Angle of View
The camera can be used with Nikon lenses for 35 mm format cameras. If a
35 mm format lens or a lens that supports the FX format is attached, the
angle of view will be the same as a frame of 35 mm film.
• You can also take pictures at angles of view that differ from that of the
current lens by selecting different options for [
Image area ] > [ Choose
image area ] in the photo shooting menu. For example, if a 35 mm
format lens or a lens that supports the FX format is attached, you can
reduce the angle of view by selecting [
DX (24×16) ].
•
The picture diagonal for 35 mm format is about 1.5 times that of the [ DX
(24×16) ] crop. Selecting [ DX (24×16) ] therefore multiplies the apparent
focal length of 35 mm format lenses attached to the camera by about
1.5×. For example, selecting [
DX (24×16) ] when a lens with a focal
length of 50 mm is attached increases the apparent focal length to
about 75 mm.
1
2
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5
6
1
Lens
2
[ FX (36×24) ] picture size (35.9
× 23.9 mm, equivalent to
35 mm format camera)
3
[ DX (24×16) ] picture size (23.5
× 15.7 mm)
4
Picture diagonal
5
[ FX (36×24) ] angle of view
(35 mm format)
6
[ DX (24×16) ] angle of view