Nortel Networks COOLPIXS570BLUE 用户手册

Step 2 Frame a Picture

Bas

ic Ph

otography an

d Pl

ayba

ck

: A

u

to

 Mod

e

Use the zoom control to activate optical zoom. Rotate 
the zoom control to 

g to zoom in so that the subject 

fills a larger area of the frame, or 

f to zoom out, thus 

increasing the area visible in the frame.

A zoom indicator is displayed at the top of the monitor 
when the zoom control is rotated.

When the camera is zoomed in to the maximum optical zoom position, rotating 
and holding the zoom control at 

g triggers digital zoom. The subject is magnified 

up to 4× the maximum optical zoom ratio.

Focus will be on the center of the screen (without active focus area display) when 
digital zoom is in effect.

C

Unlike optical zoom, digital zoom uses a digital imaging process known as interpolation to magnify 
images, resulting in slight deterioration of picture quality.

Interpolation is applied at zoom positions beyond V. When zoom is increased beyond the V 
position, interpolation is initiated and the zoom indicator turns yellow to indicate that interpolation 
is being applied. The position of V moves to the right as image size decreases, allowing for 
confirmation of the zoom positions at which shooting without interpolation is possible at the 
current image mode setting. 

• Digital zoom can be disabled from the Digital zoom option (A 123) in the setup menu 

Zoom out

Zoom in

Optical 

zoom

Digital 

zoom

Maximum optical zoom

Digital zoom is 
in effect.

When an image size is small