Pentax 645 - FLASH PHOTOGRAPHY; UTILIZING PENTAX DEDICATED FLASH UNITS

UTILIZING PENTAX DEDICATED FLASH UNITS
The compatible combination of the Pentax 645 and
one of the Pentax dedicated auto flash units will
allow convenient use as indicated in the table
below. When using the AF400T, connect the unit
to the hotshoe contact of the camera via the 4P
synch cord B. Do not attempt to couple the cord
to the X-synch socket, othervyise, the camera's
flash coupling capability will fail to function.
A dedicated flash unit, when used with the Pentax
645, may not fire if the subject is too bright for
flash photography.
FLASH COUPUNG FUNCTIONS OF THE PENTAX 645
AF400T,AF280T
AF200T,AF080C
AF260SA. AF200SA
AF1608A.AF240Z
Upon completion of charging ^ will be displayed in the externa)
LCD display window and on the viewfinder LED disolav.
With any photographic mode, the shutter speed is automatically
switched to the synchronized speed of x setting 11/60 sec.), upon
completion of charging.
(When using an ordinary flash unit other than the dedicated TTL
auto flash units, the aperture ring should be set to an appropriate
f/stop other than the "A" positioning)
If the aperture ring of the A lens is set to the "A'' position, the 645's
! flash coupling function automatically switches the aperture to the
I necessary f/stop to enable TTL auto flash control.
I Whenever the auto flash unit has emitted an appropriate luminosity,
a visual marking ( ) will light up or blink in the viewfinder,
immediately after flash discharge.
f With the use of a dedicated TTL auto flash unit, the flash luminosity
may be automatically controlled by the measuring of the light volume
reflected off the film plane while photoqraphinq.
When the Metered manual mode is used, synchronized flash
photography is possible at shutter speed at 1/60 sec or lower.
indpcates Pentax dedicated TTL flashes
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