Recording Precautions; About Auto Focus - Casio EXILIM EX-Z55 User Manual

BASIC IMAGE RECORDING
I Recording Precautions
• Never open the battery cover or place the camera onto
the USB cradle while the green operation lamp is
flashing. Doing so not only causes the current image to
be lost, it can also corrupt images already stored in file
memory and even lead to malfunction of the camera.
• Never remove the memory card while an image is being
recorded to the memory card.
• Fluorescent lighting actually flickers at a frequency that
cannot be detected by the human eye. When using the
camera indoors under such lighting, you may experience
some brightness or color problems with recorded images.
• When "Auto" is selected for the ISO sensitivity setting
(page 100), the camera automatically adjusts its
sensitivity in accordance with the brightness of the
subject. This can cause some digital noise (graininess) to
appear in images of relatively dark subjects.
• When recording a dimly lit subject while "Auto" is selected
for the ISO sensitivity setting (page 100), the camera
increases sensitivity and uses a slower shutter speed.
Because of this, you need to guard against camera
movement if you have flash turned off
• Bright light shining on the lens can cause images to
appear "washed out". This tends to happen when
recording images outdoors in bright sunlight. To protect
against this, use your free hand to shade the lens from
the light.
I About Auto Focus
• Auto Focus tends not to work well if the camera is moved
during recording, or when recording the types of subjects
listed below.
— Solid color walls or subjects with little contrast
— Strongly backlit subjects
— Polished metal or other brightly reflective subjects
— Venetian blinds or other horizontally repeating patterns
— Multiple subjects that are varying distances from the
— Subjects in poorly lit areas
— Moving subjects
• Note that a green operation lamp and focus frame do not
necessarily guarantee that the resulting image will be in
focus.
• If Auto Focus does not produce the results you want for
some reason, try using focus lock (page 75) or manual
focus (page 74).
(page 59).
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