The Rodenstock 105mm f/5.6 Rodagon Enlarging Lens 6 x 9cm enlarging lens is known as the "universal workhorse". The Rodagon offers brilliant reproduction over a wide range of enlargement ratios. With a six-element design, the Rodagon provides resolution of the finest details while maintaining a uniformly high contrast on axis to field edge. Almost unlimited application for all B&W and color enlarging.