Power Zoom Head; Using The Pz40X With Digital Cameras; E-Ttl Mode - Sunpak PZ40X Owner's Manual

Power Zoom Head

The PZ40X is equipped with a motorized zoom
head. It is controlled by the camera and is set
automatically to provide optimal flash coverage
for the focal length of the lens in use. It can even
select intermediate settings within the 24-80mm
focal length range. Or, it can be manually set
select to 24, 28, 35, 50, and 80mm by using the
Manual Zoom Mode.
* Auto Power Zoom works only with lenses of 24mm or
greater focal length.
* When using only CANON EOS cameras with their exclusive lens,
the Auto Power Zoom function can be used. With other lenses, use the manual
(M-Zoom) Mode.

Using the PZ40X with Digital Cameras

With digital cameras (such as EOS 10D and Kiss), both E-TTL Mode and Manual Mode
are available. Please refer to Page 15. When taking a picture, the Ready light blinks at first
and then lights steadily. While you can take a picture as soon as the ready light blinks, we
recommend that you wait for the Ready Light to remain on before shooting to insure that
you get the best exposure.
* If it takes longer than a few seconds for the Ready Light to illuminate, or the Ready Light
doesn't light at all, please replace the batteries or charge rechargeable batteries.
* We recommend that you use Ni-MH batteries for faster recycling and more flashes per
charge.
24 28 35 50 80
mm mm mm mm mm
7

E-TTL Mode

You can use E-TTL Mode when you use CANON EOS
cameras having E-TTL Mode function (Please refer to
Instruction Manual of camera.). When using the PZ40X,
camera with E-TTL mode switches to "E TTL" when
an input button is pushed and "E TTL" is displayed as
shown in the figure at right. (The initial setup TTL Mode
will be displayed if a switch is turned on.) In response
to a signal from the camera, the flash unit calculates the correct flash exposure
based on the film speed, sets the aperture instantly, and displays the effective
TTL flash range on the PZ40X LCD panel. The flash unit determines the optimum
amount of light required for a proper exposure with films from ISO6 to 6400. The
available range will be displayed when you partly depress the camera's shutter
release, or when the Ready Light is on.
The flash range is from 1.5 ft to 105 ft (0.5 to 32m) and is indicated by means of a
bar graph. An asterisk indicates distances greater than 105 ft (32m).
* E-TTL mode is the advanced TTL function that enables the flash to balance the
light between subject and background to provide the best overall exposure.
TTL Mode Setting
E-TTL Mode .... The most advanced flash control system to have the optimal
flash. The pre-flash result and distance information from the EF type lens
controls the amount of flash volume. This function is available only when
CANON EOS cameras are equipped with EF type lens.
TTL Mode (All of CANON cameras with TTL measuring function).... This
gives the optimal aperture to an object all the time. The brightness of the
background is not, so that the object sometimes becomes too bright.