24.3 Consider an infinitely long cylinder of radius r oriented with its axis along the y-axis. The cylinder has a Lambertian surface and is viewed by a camera along the positive z-axis. What will you expect.to see in the image of the cylinder if the cylinder is illuminated by a point source at infinity located on the positive jc-axis. Explain your answer by drawing the isobrightness contours in the projected image. Are the contours of equal brightness uniformly spaced?