The Olympus PF 35-70mm f/3.5-4.5 is a lens from the Olympus brand. It was introduced to the public in the 1980s. The production took place in a factory in Japan.
Olympus PF 35-70mm f/3.5-4.5 is a zoom lens. The focal length range goes from 35 mm to 70 mm. This results in a zoom factor of 2. The widest aperture is f/3.5 or f/4.5. For sharp pictures, you must not get closer than 30 cm to your subject.
The lens does not have autofocus, but a different motorized focusing system. The PowerFokus (PF) system allows you to adjust the focus with a thumbwheel on the camera. The aperture is also adjusted on the camera. This system is only supported by the OM-101 PF. It is not possible to use it on any other Olympus SLR camera.
The nine lens elements of the zoom lens are arranged in eight groups. A filter lens, such as a UV filter, can be attached to the 49 mm thread. 250 grams is the weight and the length is given as 5.3 cm.
Technical datasheet
| Attribute | Specification |
|---|---|
| Minimal focal length | 35 mm |
| Maximum focal length | 70 mm |
| Zoom factor | 2 |
| Biggest aperture (wide angle) | f/3.5 |
| Biggest aperture (tele) | f/4.5 |
| Smallest aperture | f/32 |
| Minimum focus distance | 30 cm |
| Number of elements | 9 |
| Number of groups | 8 |
| Filter thread | 49 mm |
| Weight | 250 g |
| Country of production | Japan |