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7.12 Contrast

To facilitate subject and pictorial composition, the camera flash can be combi-

ned with an external flash unit (mecablitz) to perform so-called contrast control

when in TTL- or P-TTL flash mode. Here the camera flash provides 1/3 of the

required flash power and the external flash unit provides the remaining 2/3.

Please observe the maximum possible flash range (guide number) of
both flash units to ensure the correct operation of the contrast control!

The benefits of contrast control can, however, only be optimally exploited if the

external flash unit is set up at a reasonable distance from the built-in camera

flash. To do so, the following original Pentax accessories are available:
The "sync cable F 5P", combined with the "adapter foot F" (to hold the external

flash unit) and "adapter foot FG" (for the connection to the camera). In this con-

text, please read the notes in the camera's operating instructions.
The auto-focus measuring beam in the mecablitz cannot be used in the contrast

control mode.

Adjusting the setting

• Press the

button repeatedly until "Select"

appears on the display.

• Use the

and

buttons to select "Contrast" in

the menu. The selected menu option is indicated by a

dark bar.

• Press the

button and confirm the setting of the

special function.

Set

Sel

☞

• Use the

and

buttons to make the desired

settings. The setting is effective immediately..

– In the

ON setting the contrast function is acti-

vated.

– In the

OFF setting the contrast function is deac-

tivated.

• Press

repeatedly to return the display to normal.

If the

button is not pressed, the display will switch back to normal auto-

matically after approximately 5 seconds.

When the external flash unit (mecablitz) and

the integrated camera flash are flash-rea-

dy,

is appears on the display of the

flash unit and the contrast function is activa-

ted when the shot is taken.
If either of the flash units is not flash-ready,

does not appear on the display

and the contrast function is not activated. The shot is then taken using normal

synchronisation (1st shutter curtain synchronisation).

The contrast function is not activated if the camera flash has not been
engaged or the TTL or P-TTL flash mode has not been selected on the
flash unit. Synchronisation is with the 1st shutter curtain. The contrast
function is automatically cancelled as soon as REAR mode (see 16.2) or
the High-Speed flash mode P-TTL-HSS (see 16.4) are activated.

Most integrated camera flash units only light focal lengths up to 35mm (see the

camera's operating instructions). If working with a focal length shorter than

35mm, a flash symbol appears in the LC display of the camera or in the camera

viewfinder to warn you that the marginal illumination of the subject may not be

sufficient! For more details see your camera's operating instructions.

☞

Select

REAR

Beep

Contrast

Set

☛