The tube of this favorable M.Zuiko 45mm f / 1.8 is plastic. The finish of the telephoto lens looks a bit cooler, but not "cheap". On the contrary, the processing is sliding at a high level and the focus ring with high precision as of more expensive copies. The M.Zuiko 45mm f / 1.8 hosts nine lens elements in eight groups and has a viewing angle of 27 °, relative to Kleindbild these are 90 mm. Its minimum focusing distance is 50 centimeters, because I would have liked a little less. However, one must not complain at this price. When it comes to vignetting, distortion and, one could speak of almost "non-existent". The lens is not particularly susceptible to stray light. The handling is ideal for portraits, real "Cropping" is now itself the MFT sensor no longer a problem. From the character of the Zuiko is somewhat reminiscent of the lenses such as Leica M Summarit-90 or the Canon EF 100 USM. - Encouraging because these lenses use a larger format. Especially at night, this lens is a very good companion because of the good brightness and the full Offblendentauglichkeit.
The Olympus M.Zuiko 45mm F1.8 is currently günstigeste variant in order to properly shoot portraits in the MFT can. It convinces with an excellent image quality, its compactness and low weight. In MFT system there are these 2-3 lenses, which could be described as Must Have that 45mm F1.8 definitely belongs to this circle. From me there's a clear recommendation.