Canon EOS R6 Advanced User Guide - Page 135

ISO Speed Settings for Still Photos ISO Speed Range When Set Manually ISO Speed Range Used with ISO Auto Minimum Shutter Speed for ISO Auto Set the ISO speed (image sensor's sensitivity to light) to suit the ambient light level. In < > mode, ISO speed is set automatically. For details on ISO speed in movie recording, see ISO Speed in Movie Recording. 1. Set the ISO speed. With an image displayed on the screen, set by turning the < > dial. ISO speed can be set within ISO 100-102400 in 1/3-stop increments. Select [AUTO] to set the ISO speed automatically. For details on the ISO Auto range, see ISO speed (recommended exposure index) in still photo shooting. ISO speed guide Low ISO speeds reduce image noise but may increase the risk of camera/subject shake or reduce the area in focus (shallower depth of field), in some shooting conditions. High ISO speeds enable low-light shooting, a larger area in focus (deeper depth of field), and longer flash range but may increase image noise. 135