Canon PowerShot S400 Digital Elph User Manual page 36

iiiii
The optical viewfinder can be used to conserve power by setting the
LCD monitor to Off (p. 29) while shooting.
t
I
Viewfinder
Shows the center of the image
• About the Autofocus Function
This camera employs AiAF (artificial intelligence autofocus)
technology which uses a broad metering field to calculate
the focal distance with high precision. It delivers a crisp focus
even when the photographic subject is slightly off-center.
The AiAF function can be turned off so that the autofocus
is metered from a fixed AF frame at the center of the field
to accommodate difficult shooting conditions (p. 68).
• Image Seen in Viewfinder vs. Recorded Image
Please note that the actual image may differ from the
image seen in the optical viewfinder due to the physical
separation between the viewfinder and lens. This is called
the parallax phenomenon and is more noticeable the closer
the subject is to the lens. In some cases, portions of images
shot up close that appear in the viewfinder will not appear
in the recorded image. Please use the LCD monitor to shoot
images up close.