Owner's Manual

ManualsBrandsNikon ManualsCamera & PhotoNikon D90 DX-Format CMOS DSLR Camera (Body Only) (OLD MODEL)

Table Of Contents

Compatible Lenses

CPU

lenses (particularly types G and

D)

are recommended

for

use

with

the

D90.

CPU

lenses can be identified by

the

presence

of

CPU

contacts,

type

G and D lenses by a

letter on

the

lens barrel. Type G lenses are

not

equipped

with

a lens aperture ring.

CPU

contacts Aperture ring

CPU

lens

TypeG lens

Type

olens

Pal

Calculating Picture Angle

The size

of

the

area exposed by a

35

mm

camera

is

36 x 24

mm.

The size

of

the

area exposed

by

the

D90, in contrast,

is

23.6 x 15.8

mm,

meaning

that

the

picture

angle

of

a

35mm

camera

is

approximately

1.5

times

that

of

the

D90. The

approximate

focal

length

of

lenses

for

the

D90 in

35

mm

format

can be calculated

by

multiplying

the

focal

length

of

the

lens

by

about

1.5.

Picture size (35mm format)

Lens

(36

x24mm)

Picture

diagonal

Picture size (090)

(23.6 x

75.8

mm)

Picture angle (35mm format)

Picture angle (090)

Pal

Lens f-number

The

f-number

given in lens names

is

the

maximum

aperture

ofthe

lens.

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