Pentax 280T Operation Manual - Page 14

Lur'El

Page 14 highlights

:11N0-LEVEIZAUTC*FLAW OPERATION The AF 280T offers Two-Level (high/low) auto flash operation via the flash unit's built-in sensor with ail cameras featuring hotshoe synchronization. 1) Set the ASA/ISO film speed of the film in your camera in the ASA/ISO window of the flash unit control panel (see page 7). 2) Set the camera's shutter speed/control dial to the proper synchronization mode (pages 10 - 11). 3) Set the mode selector lever on the flash control panel to either the RED or GREEN Auto setting in accordance with the adjacent chart. Either mode may be used for the lm - 3.5m operating range; with subjects closer than 1m, however, the GREEN setting must be used to obtain the proper exposure. Conversely, for subjects beyond 3.5 meters the high output RED mode must be used. TTLAImi Lur'Eml s 0 •When used with Pentax cameras having a programmed AE function with the aperture ring of th lens set at A, the aperture is automatically set to the programmed f-stop on completion of the charging. TTL AUTO iMr-St ( H L M I A.CHECK 12

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:11N0-LEVEIZAUTC*FLAW
OPERATION
The
AF
280T
offers
Two
-Level
(high/low)
auto
flash
operation
via
the
flash
unit's
built-in
sensor
with
ail
cameras
featuring
hotshoe
synchronization.
1)
Set
the
ASA/ISO
film
speed
of
the
film
in
your
camera
in
the
ASA/ISO
window
of
the
flash
unit
control
panel
(see
page
7).
2)
Set
the
camera's
shutter
speed/control
dial
to
the
proper
synchronization
mode
(pages
10
-
11).
3)
Set
the
mode
selector
lever
on
the
flash
control
panel
to
either
the
RED
or
GREEN
Auto
setting
in
accordance
with
the
adjacent
chart.
Either
mode
may
be
used
for
the
lm
3.5m
operating
range;
with
subjects
closer
than
1
m,
however,
the
GREEN
setting
must
be
used
to
obtain
the
proper
exposure.
Conversely,
for
subjects
beyond
3.5
meters
the
high
output
RED
mode
must
be
used.
12
ms
TTLAIm
i
Lur'El
0
•When
used
with
Pentax
cameras
having
a
programmed
AE
function
with
the
aperture
ring
of
th
lens
set
at
A,
the
aperture
is
automatically
set
to
the
programmed
f-stop
on
completion
of
the
charging.
TTL
MS
AUTO
ir-t
(
H
L
M
I
A.CHECK