The Olympus Zuiko Auto-W 21mm f/3.5 is a lens from the Olympus brand. It was assembled by the traditional company in Japan.
The manufacturer names 21 mm as the focal length of the fixed focal length. For this reason, it can be counted among the group of wide-angle lenses. The fixed focal length has a maximum aperture of f/3.5. f/16 is the smallest available aperture.
The focus on this specimen has to be set manually. The closest focusing distance is specified as 20 cm.
The lens can be used on SLR camera with OM bayonet. With an adapter it can also used with modern digital cameras.
The Olympus Zuiko Auto-W 21mm f/3.5 is composed of 7 elements in 7 groups. A filter can be attached to the 49 mm thread. 180 grams is the weight of the lens.
Technical datasheet
| Attribute | Specification |
|---|---|
| Biggest aperture | f/3.5 |
| Smallest aperture | f/16 |
| Minimum focus distance | 20 cm |
| Number of elements | 7 |
| Number of groups | 7 |
| Filter thread | 49 mm |
| Weight | 180 g |
| Country of production | Japan |