I have taken notice that in diigtal cameras, exceptional devices help to focus automatically. The sensors involving some diigtal cameras change in in the area of contrast, while others use a beam of infra-red (IR) light, especially in low lighting. Higher spec cameras occasionally use a combination of both systems and will often have Face Priority AF where the dslr camera can See' your face as you concentrate only on that. Many thanks for sharing your thinking on this blog.
Comments:
I have taken notice that in diigtal cameras, exceptional devices help to focus automatically. The sensors involving some diigtal cameras change in in the area of contrast, while others use a beam of infra-red (IR) light, especially in low lighting. Higher spec cameras occasionally use a combination of both systems and will often have Face Priority AF where the dslr camera can See' your face as you concentrate only on that. Many thanks for sharing your thinking on this blog.