Why doesn’t the SLR focus on the face and eyes on the mirrorless lens?
Q: Why doesn’t the SLR camera have the face and eye detection focus on the mirrorless camera?
A: SLR cameras and mirrorless cameras have different structural principles. They usually work with independent metering modules. Taking into account the cost, size and power consumption, it is often impossible to achieve the face on the mirrorless camera , Eye detection focus.
When the mirrorless camera is working, the camera can “see” The picture is the same as what we see in the viewfinder, it is a girl with her cheek in thought. Therefore, even the very basic mirrorless cameras are equipped with face/eye focusing functions.
SLR camera Can “see” the picture
But the picture that the SLR camera can detect is not the same as the picture we see in the viewfinder. To use an analogy, a SLR camera is like a nearsighted person who does not wear glasses to see things. It is not an exaggeration to say that “no distinction between humans and animals” is 3 meters away. Therefore, we can only judge whether the exposure is accurate. Where is the face? Where are the eyes? That concubine really can’t do it…
EOS 850D can realize face recognition and focus under optical viewfinder, which was only possible with professional models in the past
However, with the continuous upgrade of SLR camera metering modules, Today, the entry-level SLR camera EOS 850D is also equipped with a 220,000-pixel metering module that only high-end SLR cameras used to have. This is equivalent to a nearsighted person finally wearing glasses: the people in the picture and the eyes are all At a glance, this is a natural realization of face recognition under the optical viewfinder system of SLR cameras. I believe that with the continuous development of technology, future SLR cameras will gradually popularize this feature.
Author:SINA,If you need to reprint,please indicate the source:http://www.todaycamera.com/camera-news/why-doesnt-the-slr-focus-on-the-face-and-eyes-on-the-mirrorless-lens