FujiFilm GA645 Professional Owner's Manual page 33

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the subject or the displayed distance may differ ex-‫‏‬
‫סח‬
tremely with the actual subject distance.
e Fast-moving objects.
e Objects that have no definite shape, such as smoke
and flame (especially on active-type autofocusing).
e lf you are shooting through a window glass.
e
‫ ו ו‬‎ your subject cannot reflect enough light, such as a
bunch of hair and fur.
e Strongly reflecting objects, such as a mirror and car
body (especially on passive-type autofocusing).
e Extremely low-contrast objects.
e Objects which have vertical lines only.
*
Indicates 3000 shots (Fig. 59-A)
* Always shows "00" (Fig. 59-B)
Press in the Exposure Compensation Button )+( and turn
the Selecting Dial from OFF to "ISO". While pressing in
the Button, the Total Shots Indicator in the LCD will show
you the total number of shots that have been taken. It will
count the number in units of 100.
Use this function as a guide for overhauling or regular
maintenance.
e Though new, some units will show that they have been
factory-tested up to about 200 shots.
V. A WORD ON THE CAMERA'S AUTOFOCUS
SYSTEM
Ш Principle
Your camera's autofocus system uses an active type
method (trigonometrical distance measurement with infra-
red rays) and a passive type method (detection of phase
difference) for precise focusing.
While the passive type method takes care of distant ob-
jects that cannot be reached by infrared rays, the active
type method takes care of low-contrast objects (at near
distances)
that are not suited for the passive
type
autofocusing method, thereby increasing the reliability of
the autofocus system to improve the focusing accuracy.
Ш Objects that are not suited for autofocusing
In the following cases, the Lens may not be able to focus
HSITONA

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