Methods and systems include using a digital camera module for capturing a plurality of digital images of a tested subject at a plurality of perspective views. The tested subject is not required to move their head position or viewing direction during the capturing of images. A motion control module I) rotates the camera module with its optical axis pointing at a rotation center to correct any orientation error in capturing the perspective views, and II) positions the camera module to adjust the rotation center for accommodating different head positions of the tested subject. A computer module processes and stores the plurality of digital images to fit an eyeglass frame to the tested subject or to acquire data for fitting prescription lenses into the eyeglass frame. The computer module can provide an augmented reality of different styles of eyeglasses, and obtain 3D measurements for fitting eyeglass frames.