The red dot of Canon 700D SLR camera is a little dim and astigmatism when focusing, does it affect photography?

The red dot of Canon 700D SLR camera is a little dim and astigmatism does not affect the normal use of the camera, but only adapts to the design of camera autofocus.

The autofocus auxiliary light of Canon 700D is a beam of scattered light corresponding to the autofocus sensing point in the viewfinder according to the projection position of red light, which can be divided into light and dark, so as to ensure that the autofocus sensor can also collect detection signals with sufficient contrast when the object is a plane with uniform contrast such as a book or a wall.