Chapter 1 - Basic info 55Chapter 5 - Focusing the cameraaf assist infrared liGhtWhen the subject is dark or under-exposed and the camera fails to auto-focus, a red lamp maylight up on the front of the camera when the shutter release button is half-pressed. This is a lightthat assists the camera’s auto focus function. The AF assist infrared light is emitted only when the focus mode is set to “S”(single focus mode). Effective range of the AF assist infrared light is limited. It does not reach distant subjects.Range: 9m/29.5 ft. (using 80 mm f/2.8 lens under test conditions) When using a lens hood or a bellows lens hood (sold as an optional accessory) that mayinterfere with the assist light, set focus before mounting the hood.CSM.UPL11114422225ftm
