Casio R51 - Manual (Page 54)

54
BASIC IMAGE RECORDING
Recording Precautions
• Never open the battery compartment cover 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 86), the camera automatically adjusts its sensitivity
in accordance with the brightness of the subject. This can
cause some static noise to appear in images of relatively
dark subjects.
• When recording a dimly lit subject while “Auto” is selected
for the ISO sensitivity setting (page 86), 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 (page 58).
• If unwanted light is shining on the lens, shade the lens
with your hand when recording the image.
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 objects with little contrast
— Strongly backlit objects
— Polished metal or other brightly reflective objects
— Venetian blinds or other horizontally repeating patterns
— Multiple images that are varying distances from the
camera
— Subjects in poorly lit areas
— Moving subjects
• Note that a green operation lamp and focus frame do not
necessarily guarantee that an image is in focus.
• If Auto Focus does not produce the results you want for
some reason, try using focus lock (page 70) or manual
focus (page 69).