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Using the built-in flash, Compatibility of built-in flash and lens – Pentax K20D User Manual

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60

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ic O
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ions

3

Using the Built-in Flash

If you wish to discharge the flash in a dark or backlit location, press the
K button to pop up the flash. Select a flash mode to suit your purpose
from the Flash options screen in the Fn menu. You can adjust the flash
output with the rear e-dial in any Exposure mode other than Green mode.
The built-in flash is optimum at about 0.7 m to 5 m from the subject.
Exposure will not be properly controlled and vignetting may occur when
used at a distance closer than 0.7 m (this distance varies slightly
depending on the lens being used and set sensitivity (p.141)).

C

Auto discharge

Discharges the flash automatically in dark or backlit
locations.

D

Auto flash+
Redeye reduct

Lights a red-eye reduction light before automatic flash.

E

Flash On

Discharges the flash each time.

F

Flash On+
Red-eye

Lights a red-eye reduction light before discharging the
flash with Flash On.

G

Slow-speed sync

Sets the shutter speed slower depending on the
brightness. Use this when shooting a portrait in front of
a sunset or other scenery to capture both the person
and background clearly.

H

Slow-speed sync+
Red-eye

Lights a red-eye reduction light before discharging the
flash with Slow-speed sync.

I
k

Trailing curtain
sync

Discharges flash immediately before closing the
shutter curtain. Capture moving images as if they are
leaving a trail behind.

r

Wireless Mode

You can synchronize a dedicated external flash
(AF540FGZ or AF360FGZ) without using a sync cord.

Compatibility of built-in flash and lens

Vignetting (darkening of the corners of the image due to a lack of

light) may occur depending on the lens being used and the capture

conditions. We recommend taking a test shot to confirm this.

1

DA, D FA, FA J, FA and F Lens Compatibility with the Built-in Flash

(p.142)

• When using the built-in flash, remove the lens hood before shooting.
• The built-in flash fully discharges for lenses without a function to set

aperture lens ring to s (Auto).