The Olympus OM Zuiko Auto-Macro 50 mm f/ 2 is a fast macro lens for 35 mm SLR Olympus Om cameras.
It is the world's second fastest lens with the focal length of 50mm. The system of floating elements corrects aberration at the closest distances.
When used with macro extension tubes or bellows, you can get more magnification ratio than 1:2. Besides, it is recommended that the lens was focused at a minimum distance whereas the scheme of floating elements was focused to work at short distances.
The Lens Olympus OM Zuiko Auto-Macro 50mm f/2 can be successfully used for ordinary shooting.