Canon EOS Rebel SL1 18-55mm IS STM Kit Instruction Manual - Page 98

i: Changing the ISO SpeedN Set the ISO speed (image sensor's sensitivity to light) to suit the ambient light level. In Basic Zone modes, the ISO speed is set automatically (p.99). 1 Press the button. (9) X [ISO speed] will appear. 2 Set the ISO speed. Press the keys or turn the dial to select the desired ISO speed, then press . You can also set the ISO speed by turning the dial while viewing the ISO speed setting in the viewfinder. With [AUTO] selected, the ISO speed will be set automatically (p.99). ISO Speed Guide ISO Speed Shooting Situation (No flash) Flash Range ISO 100 - 400 Sunny outdoors The higher the ISO speed, ISO 400 - 1600 Overcast skies or evening time the farther the flash range ISO 1600 - 12800, H Dark indoors or night will extend (p.111). * High ISO speeds will result in grainier images. Under [54: Custom Functions (C.Fn)], if [2: ISO expansion] is set to [1: On], "H" (equivalent to ISO 25600) can also be set (p.300). Under [54: Custom Functions (C.Fn)], if [3: Highlight tone priority] is set to [1: Enable], ISO 100 and "H" (equivalent to ISO 25600) cannot be selected (p.301). Shooting in high temperatures may result in images that look grainier. Long exposures can also cause irregular colors in the image. 98