Olympus µ 790SW Manuale Istruttivo

54 

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The flash is activated automatically when there is insufficient light, or when the camera is 

shaken. To take pictures with no flash in dark places, set the flash mode to [

$] and set as 

follows:
Increase the [ISO] setting

g “ISO Changing the ISO sensitivity” (P. 24)

There are several factors that can cause the picture to appear grainy.
Using the digital zoom to take close-up pictures

• With the digital zoom, part of the image is cropped and enlarged. The greater the 

magnification, the grainier the picture appears.

g  “DIGITAL ZOOM Zooming in on your subject” (P. 25)

• When you increase the [ISO] setting, “noise”, which appears as spots of unwanted color or 

unevenness in the color, can be introduced and give the picture a grainy appearance. This 

camera is equipped with a function to allow shooting at high sensitivity while suppressing 

noise; however, increasing the ISO sensitivity can result in some noise, depending on the 

shooting conditions.

g “ISO Changing the ISO sensitivity” (P. 24)

• The reason why there are sometimes differences between the actual colors and the colors 

recorded in a picture is related to the light source illuminating the subject. [WB] is the 

function that helps the camera determine the true colors. Normally, the [AUTO] setting 

provides the optimal white balance, but depending on the subject, results may be better if 

you manually adjust the [WB] setting.

• When the subject is in the shade on a sunny day

• When the subject is illuminated by both natural light and indoor lighting, such as when 

near a window

• When there is no white in the center of the frame

g “WB Adjusting the color of a picture” (P. 24)

• Take pictures with K in 

s mode. Suitable for taking pictures on a sunny day at the 

beach or in the snow.

g “

s (Scene) Selecting a scene mode according to the shooting situation” (P. 23)

• Often, bright subjects (such as snow) turn out darker than their natural colors. Use 

1F to 

adjust toward [+] to make these subjects closer to their true shades. Conversely, when you 
are shooting dark subjects, it can be effective to adjust toward the [–]. Sometimes, using the 
flash may not produce the brightness (exposure) that was intended.

g “

1F button Changing picture brightness (Exposure Compensation)” (P. 16)

• When [SHADOW ADJ. ON] is selected, the subject’s face appears brighter even against 

backlight and the color of the background is enhanced in the picture. This function can also 
be used to shoot a subject inside a home or building from outside.

g “f Brightening the subject against backlight” (P. 17)

• With [ESP/n] set to [n], the picture can be taken based on the brightness at the center 

of the monitor without being affected by the light in the background.

g “ESP/n  Changing the area for measuring the brightness of a subject” (P. 25)

• Set the flash to [

#] to activate fill-in-flash. You can shoot a subject against backlight without 

the face of the subject appearing dark. [

#] is effective for shooting against backlight and 

under fluorescent and other artificial lighting.

g “

3# button Flash shooting” (P. 16)

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