“ I have noticed that in digital camera models, unique detectors help
to maintain focus automatically. The actual sensors connected with some cameras change in in the area of contrast, while others utilize
a beam involving infra-red (IR) light, specially in low lumination. Higher specs cameras at times use a combination of both techni and
will often have Face Priority AF where the digital camera can 'See' a face and focus only in that.
Thanks for sharing your notions on this site. ”