Canon PowerShot SX170 IS - Manual (Page 110)

110
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• The digital tele-converter cannot be used with digital zoom
( = 59 ) or AF-point zoom ( = 72 ).
• The respective focal lengths when using [1.6x] and [2.0x] are 44.8 –
716.8 mm and 56.0 – 896.0 mm (35mm film equivalent).
• The shutter speed may be equivalent when you move the zoom
lever all the way toward < i> for maximum telephoto, and when
you zoom in to enlarge the subject to the same size following step 2
in “Zooming In Closer on Subjects (Digital Zoom)” ( = 59 ).
Still Images Movies
Changing the AF Frame Mode
Change the AF (auto focus) frame mode to suit the shooting
conditions as follows.
z z Press the < n> button,
choose [AF Frame] on the
[ 4] tab, and then choose the
desired option ( = 45 ).
Still Images Movies
Center
One AF frame is displayed in the center. Effective for reliable
focusing.
• A yellow AF frame is displayed with [ ] if the camera
cannot focus when you press the shutter button halfway.