“ I have noticed that in digital cameras, special devices help to {focus|concentrate|maintain focus|target|a**** automatically. The actual sensors associated with some camcorders change in in the area of contrast, while others make use of a beam associated with infra-red (IR) light, specially in low light. Higher spec cameras from time to time use a blend of both systems and will often have Face Priority AF where the photographic camera can 'See' any face while focusing only on that. Thanks for sharing your ideas on this weblog. ”