PowerShot Pro90IS Camera User Guide

Shooting - Letting the Camera Select Settings 43
Adjusting the Zoom (Focal Length)
Focal length can be adjusted from 7 to 70 mm (equivalent to 37 to 370 mm in
35 mm film format).
Telephoto / Wide Angle
• Twist the zoom ring toward to zoom in
(telephoto).
• Twist the zoom ring toward
to zoom out
(wide angle).
Digital Zoom
• An image already zoomed with the optical
zoom lens can be further zoomed digitally by 2
or 4 times (p. 55) and shot.
• The digital zoom combines the optical zoom with a digital teleconverter function.
The resolution is coarser than with pure optical magnification.