Canon EF-S 17-55 f/2.8 IS USM EF-S17-55mm F2.8 IS USM Instruction Manual - Page 7

5 Image Stabilizer You can use the image stabilizer in AF or MF mode. 1 Set the STABILIZER switch to . ¡If you are not going to use the image stabilizer function, set the switch to . 2 When you press the shutter button halfway, the Image Stabilizer will start operating. ¡Make sure the image in the viewfinder is stable, then press the shutter button the rest of the way down to take the picture. The image stabilizer in this lens is effective for hand-held shots under the following conditions. ¡In semi-darkened areas such as indoors or outdoors at night. ¡In locations where flash photography is prohibited, such as art museums and theater stages. ¡In situations where your footing is uncertain. ¡In situations where fast shutter settings cannot be used. ENG-6