Nikon D5600, Reference Manual

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307
Technical Notes
D
IX NIKKOR Lenses
IX NIKKOR lenses can not be used.
A
Identifying CPU and Type G, E, and D Lenses
CPU lenses can be identified by the presence of CPU contacts, type G,
E, and D lenses by a letter on the lens barrel. Type G and E lenses are
not equipped with a lens aperture ring.
CPU contacts Aperture ring
CPU lens Type G or E lens Type D lens
When using a CPU lens equipped with an aperture ring, lock the
aperture ring at the minimum aperture (highest f-number).
A
Matrix Metering
For matrix metering, the camera uses a 2016-pixel RGB sensor to set
exposure according to tone distribution, color, composition, and, with
type G, E, or D lenses, distance information (3D color matrix metering
II; with other CPU lenses, the camera uses color matrix metering II;
which does not include 3D distance information).