Canon S230 PowerShot S230, Digital IXUS V3 Camera User Guide - Page 36

Basic Functions 33 Using the Viewfinder The optical viewfinder can be used to conserve power by setting the LCD monitor to Off (p. 29) while shooting. The field of vision is approximately 82% at the telephoto end setting. Shows the center of the image Viewfinder • 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. 62). • 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. You are recommended to use the LCD monitor to shoot images up close.