Focus peaking is a focusing aid in

live preview Live preview is a feature that allows a digital camera's display screen to be used as a viewfinder. This provides a means of previewing framing and other exposure before taking the photograph. In most such cameras, the preview is generated by m ...

electronic viewfinder An electronic viewfinder (EVF) is a camera viewfinder where the image captured by the lens is displayed on a small screen (usually LCD or OLED) which the photographer can look through when composing their shot. It differs from a live preview sc ...

s on digital cameras that places a white or coloured highlight on in-focus edges (contours) within an image using an edge detect filter.

References

*http://photolisticlife.com/2013/04/07/what-is-focus-peaking/ *http://camera-wiki.org/wiki/Focus_peaking *http://petapixel.com/2012/08/30/focus-peaking-making-its-way-onto-more-digital-cameras/ {{photography-stub Digital photography