A reverse camera system should have the ability to produce a mirror image (reversed) via the camera or monitor. Many rear view camera system that does not have this capability. No matter whether the camera monitor produces a mirror image or flip the image left to right or as in some high end systems, both the camera and the monitor can display images switched roles "normal" or its reflection.
Why do you need the image in the form of reflection? To see the same type of image you see in the rearview mirror, camera or monitor must be able to reverse the resulting image.
This capability will provide the same kind of picture through the rear view camera system will you see when you look into the rearview mirror, which is the desired image for the reverse operation for safety.
Many sophisticated rear view camera system that is capable of displaying between normal and mirror image, but it also allows you to reverse the image vertically.
Field image provided by the camera is determined by the combination of the size of the image sensor and lens focal length. The larger the image sensor, the broader possibilities for the field of view.
However, the larger the image sensor does not necessarily guarantee a wider field of view. Many rear view camera system utilizing sensors ¼ and only give the point of view of 60 to 90 degrees. Angle of view of 90 degrees may be sufficient for some small-sized vehicles, but the angle of view of 120 degrees would be better.
You should completely avoid rear view camera system which produces viewing angle lower than 90 degrees.
Generally, rear view camera systems utilizing high definition image sensor 1/3 and produce a 120-degree view, the ideal viewing angle for most applications reverse camera.
