The Apo-Ronar is the classic process lens.  But the scope of this lens, with its outstanding definition, goes far beyond process and product shots.  Wit a field angle of around 48 degrees it is a first-class long focal length lens for all formats whose long side is not larger than half the focal length.  A lens which is light, compact, attractively priced and still superior in sharpness and field angle to tele lens designs.

As the image circle increased with camera extension, the Apo-Ronar maintains its image quality even at high reductions (distance range) or magnifications.  The contrast transfer will always be near the physical liit.  The apo-chromatic correction keeps even high contrast outlines free from colour fringing.