11. The depth of field is identical, if angle of view and absolute aperture width are identical. 12. For comparison, the human visual system perceives an angle of view of about 140?by 80? 13. Angle of view can also be determined using FOV tables or paper or software lens calculators.14. Then the angle of view is given by: 15. Depending on the angle of view , glass has a surface of either razor sharpness or infinite depth. 16. :In photography it's called Angle of view . 17. In fact, all the shots and angles of view were studied to better defend the defensive system. 18. The simpler half-lens was of adequate quality for the narrow angle of view and small relative aperture. 19. The small amount of contrast between stripes is enhanced by the angle of view and the camera. 20. It is most often expressed as the angular size of the view cone, as an angle of view .