Canon 512XL - Manual (Page 22)

7 Check Exposure
Pull the shutter lever lightly to check exposure.
• Exposure Warning Mark
When focusing under abnormal lighting conditions,
if the red curtain slides across the exposure indicator
window, so that one-half (or more) of the window is
entirely covered by the red curtain, then the picture
will be either over or under-exposed. If the red curtain
appears but the window is less than half covered, a
well exposed picture can still be taken.
8
Pull the shutter lever to shoot
9 Zoom as desired while shooting
• Electric zoom
When T on zoom switch is pressed, the camera zooms
towards telephoto. When W is pressed, the camera
zooms towards wide-angle.