Using The Aperture Ring - Pentax K-70 Operating Manual

Lens
DA 16-85mm F3.5-5.6 ED
DC WR
DA 17-70mm F4 AL [IF]
SDM
DA 18-250mm F3.5-6.3 ED
AL [IF]
DA 18-270mm F3.5-6.3 ED
SDM
D FA 24-70mm F2.8 ED
SDM WR
k
FA 28-70mm F2.8 AL
FA SOFT 28mm F2.8/
FA SOFT 85mm F2.8
Restrictions when using
the built-in flash
When the focal length is 24 mm
or less and the shooting
distance is 0.8 m or less,
vignetting may occur.
When the focal length is less
than 24 mm, or when the focal
length is 35 mm and the
shooting distance is 1 m or less,
vignetting may occur.
Vignetting may occur if the
focal length is less than 35 mm.
Vignetting may occur if the
focal length is less than 24 mm.
Vignetting may occur if the
focal length is less than 36 mm.
Vignetting may occur if the
focal length is 28 mm and the
shooting distance is less than
1 m.
The built-in flash always
discharges fully.

Using the Aperture Ring

The shutter can be released even if the aperture ring of the D
FA, FA, F, or A lens is not set to the 9 position or a lens without
an 9 position is attached.
Select [Enable] in [24 Using Aperture
Ring] of the E4 menu.
The following restrictions apply depending on the lens being
used.
Lens
D FA, FA, F, A, M (lens
The aperture remains open
only or with automatic
The shutter speed changes in
diaphragm accessories
relation to the open aperture but
such as auto extension
an exposure deviation may occur.
tube K)
D FA, FA, F, A, M, S (with
diaphragm accessories
such as extension tube K) Pictures can be taken with the set
aperture value but an exposure
Manual diaphragm lens
deviation may occur.
such as reflex lens (lens
only)
FA SOFT 28mm/
Pictures can be taken with the set
FA SOFT 85mm/
aperture value within a manually
F SOFT 85mm
adjustable aperture range
(lens only)
*1 When the mode dial is set to L or M, the aperture can be stopped
down to the selected value.
E4
24 24 Using Aperture Ring Using Aperture Ring
1 1 Disable Disable
2 2 Enable Enable
Shutter will release when Shutter will release when
aperture ring is not set to the aperture ring is not set to the
"A" position "A" position
Cancel Cancel 23 23 1 1 OK OK
Restriction
*1
.
7
*1
.
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