$31.00
Because of the ingenious optical design the lens remains in focus throughout its entire zoom range once it is focused, and there is virtually no change in aperture. A meter coupling prong provides linkage with Nikkormat and Photomic-series thru-the-lens meters, and automatic diaphragm control guarantees the brightest possible viewfinder images for ease of viewing and focusing. The depth-of-field scale has continuous curved lines for reading depth of field at any focal length.