Olympus M.Zuiko Digital ED 9-18mm f/4-5.6
| Maker | Olympus Corporation |
|---|---|
| Technical data | |
| Type | Wide angle Zoom |
| Focal length | 9–18mm |
| Focal length (35mm equiv.) | 18-36mm |
| Aperture (max/min) | f/4.0-5.6 - f/22 |
| Close focus distance | 0.25m |
| Max. magnification | 0.1 |
| Diaphragm blades | 7, circular aperture |
| Construction | 12 elements in 8 groups |
| Physical | |
| Max. length | 49.5 mm |
| Diameter | 56.5 mm |
| Weight | 155g |
| Filter diameter | Ø52mm |
The Olympus Corporation M.Zuiko Digital ED 9–18mm f/4-5.6 is a Micro Four Thirds System lens. In the Micro Four Thirds format, it is a zoom ranging from wide to ultra-wide. Like many other Olympus Micro Four Thirds zooms, the front lens elements extend for use, and retract for storage.
The lens is "focus-by-wire"; the grip ring is not mechanically connected to the optics, but instead controls the autofocus motor. Users can reverse the ring focusing direction in the camera software.[1]
Reviewers found sharpness to be competitive with the alternative Panasonic 7-14mm, despite a noticeably smaller collapsed size, lack of vignetting, and much lower price. However, they also note more chromatic aberration, and lower build quality.[1][2][3][4][5]
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