AIdentifying 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).

AMatrix 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).

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