Canon EOS Rebel SL1 18-55mm IS STM Kit Instruction Manual - Page 171

Using AF to Focus (AF Method) If focus is not achieved with the shooting conditions on the preceding page, set the lens focus mode switch to and focus manually. If you use AF with any of the following lenses, using [Quick mode] is recommended. Autofocusing with [u+Tracking], [FlexiZone - Multi] or [FlexiZone - Single] may take longer or correct focus may not be achieved. EF50mm f/1.4 USM, EF50mm f/1.8 II, EF50mm f/2.5 Compact Macro, EF75-300mm f/4-5.6 III, EF75-300mm f/4-5.6 III USM For information on discontinued lenses, refer to your local Canon Web site. If you shoot a peripheral subject and it is slightly out of focus, aim the center AF point or zone over the subject to focus, focus again and then take the picture. The AF-assist beam will not be emitted. However, if an EX-series Speedlite (sold separately) equipped with an LED light is used, the LED light will turn on for AF-assist when necessary. In magnified view, the higher the magnification, the more difficult focusing will be because of camera shake during handheld shooting (as well as when the lens focus mode switch is set to ). Using a tripod is recommended. 171