Pentax K-x Black K-x Black K-x Manual - Page 69

Using the Built-in Flash 67 Basic Operations Use the following procedures to take pictures in low light or backlit conditions or when you want to use the built-in flash. The built-in flash is optimum at about 0.7 m to 5 m from the subject. Exposure will not be properly controlled and vignetting (darkening of the corners of the image due to a lack of light) may occur when used at a distance closer than 0.7 m (this distance varies slightly depending on the lens being used and the set sensitivity (p.160)). 3 Compatibility of built-in flash and lens Vignetting may occur depending on the lens being used and the capture conditions. We recommend taking a test shot to check the compatibility. 1 Lens Compatibility with the Built-in Flash (p.161) • When using the built-in flash, remove the lens hood before shooting. • The built-in flash fully discharges for lenses without a function to set aperture lens ring to s (Auto). For details on the built-in flash and instructions on how to take pictures with an external flash, refer to the "Using the Flash" (p.155). Setting the Flash Mode Flash Mode C Auto Flash Discharge b Manual Flash Discharge Function The camera automatically measures the ambient light and determines whether to use the flash. The flash pops up and discharges automatically when necessary, such as when using a shutter speed likely to cause camera shake or in backlit conditions (except when in s (Landscape), \ (Moving Object) or l (Night Snap) in H (Scene) mode). The flash may pop up but may not discharge if the camera determines that the flash is not necessary. Discharges the flash manually. Discharges when the flash is popped up, does not discharge when retracted.