Housing: If you look at the lens so that it falls on consists entirely of glass and plastic. Even the bayonet is made of plastic. Nevertheless, it provides an enormous stability. During a fall from two meters nothing happened. The advantage of this construction is much lower weight. So the 40-150 II is the lightest DSLR telephoto zoom on the entire market!
Construction: Olympus led by 40-150 II also a new construction method of its lenses. So the newer standard lenses are usually built with the telescope technology. It take several tube 'above the other from. This saves space and has at rest the smallest Telezoom the world in your hand!
Image quality:. Since Olympus is the only manufacturer on the market on a holistic, digital concept raises the question of the image quality not only the standards are so high that a combination between Olympus body and Olympus lens always the same excellent image quality supplies. So also here! It is one of the best telephoto zoom on the market and provides the same resolution, such as a Canon 70-200 / 4.0L. That should not be a damning indictment for Canon, but is distinguished from the high quality of the Olympus lens.
Conclusion: If one looks for his little Olympus (eg E-620) is a good telephoto zoom at a reasonable price so you can not get at 40-150 II! Although one must with an initial aperture of 4.0 get along, but that's in this area on the market standard and not bad at all. If you want to have a little more light has the Olympus 40-150 I to. This is somewhat brighter for it but also slightly heavier and slightly larger. By the way, you can mention that it has also a metal bayonet.
My recommendation: if you necessarily buy it small and light needs. The quality is beyond reproach!
