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Sony DSC-F717 Operating Instructions (primary manual) Operating Instructions Manual Page 27

Cyber-shot® cameras: cyber-shot® digital still camera.
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Recording images with the
hologram AF
The hologram AF is fill light to focus more
easily on a subject in dark surroundings. Set
[HOLOGRAM AF] (page 110) to [AUTO]
in the SET UP settings. The factory setting
is [AUTO].
appears on the screen and
the hologram AF emits light when the
shutter button is pressed halfway until the
focus is locked.
• If hologram AF light does not reach the subject
sufficiently or the subject has no contrast, focus
will not be achieved. (A distance up to
approximately 4.5 m (177 1/4 inches) is
• Focus is achieved as long as hologram AF light
reaches the subject, even if the light is slightly
off the center of the subject.
• The hologram AF will not emit light when
adjusting the focus manually.
• The hologram AF will not emit light when
[CONVERSION LENS] is set to [ON] in the
SET UP settings (page 110).
• If the hologram AF emitter is dirty, the
hologram AF light may be dimmed and focus
may not be achieved. In this case, wipe the
hologram AF emitter with a dry cloth.
• The hologram AF emitter emits very bright
light. Although there are no problems with
safety, directly looking into the hologram AF
emitter at close range is not recommended, as
you may see residual spots for several minutes
afterwards, such as after looking into a
• Do not block the hologram AF emitter during
• Attaching an optional filter, wide conversion
lens or telephoto conversion lens may interfere
with Holographic AF light emission.
About Hologram AF
"Hologram AF (Auto-Focus)" is an AF
optical system that applies laser holograms
to enable you to shoot still images in dark
places. The Hologram AF system uses
gentler radiation than conventional high-
brightness LEDs or lamps, thus satisfying
Laser Class 1* specifications and
maintaining higher safety for human eyes.
* Hologram AF satisfies Class 1 (time base
30 000 seconds), specified in JIS (Japan), IEC
(EU), and FDA (US) industry standards.
Complying with these standards identifies the
laser product as safe, under the condition that a
human can look at the laser light either directly
or through a lens for 30 000 seconds.


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