The Rogonar forms a solid base for the "first steps" in amateur developing. This lens is already a standard feature of many low-price enlargig units. With 3 free elements the lens has a relatively simple optical design.

With 3 free elements the lens has a relatively simple optical design.  But when used for a relatively small scale range and at a working aperture of 11, it still offers good results.

The high full aperture for a 3 element lens ensures simple and precise focusing.

The Rogonar is available in two versions for 35 mm film or roll film formats tp to 6 x 6 cm.  Both versions have a click-stop diaphragm and an illuminated f-number scale.

Further important technical details can be found in the table on the rear cover.