Excerpt: I just moved over from DSLR to the MFT format and had very little knowledge of MFT lens quality save for reviews on the internet. I knew I wanted a walk around lens similar to my 18-200mm Nikkor. I have to say, I found it with this lens. <br /><br />I would have liked it to be a bit faster...my Nikkor was f3.5 at least. But so far, it hasn't been an issue. If I'm going to be shooting in low light, I'm likely going to put on the M. Zuiko 12-40 f2.8.
Pros: Consistent Output, Easily Interchangeable, Fast / accurate auto-focus, Lightweight
Excerpt: Used on an EM-1 and sometimes on an EPL-5, this is the Oly equivalent of Nikon/Canon 28-300 lens, but, at half the weight and nearly half the price. It has all the compromises of a 10.7 times zoom and the same small aperture. The difference is that Oly algorithms control distortion better than Nikon/Canon and this is a nearly distortion free lens in JPEG form.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight
Summary: I have had this lens for a while now and it has become my everyday lens. The only time I use another is if I need good macro ability as this lens does not do macro and that is why it only gets 4 stars. The control rings are both smooth and accurate. Great Lens.
Excerpt: This is the 2nd example of this lens I've gotten. The 1st was unacceptable at 150mm. This lens I'm happy to say is considerably better. I had returned the 1st one, but when the lens went on sale again I decided to try once more. It's not in league with the m4: 3 primes, nor the 12x40, but it's utility is a joy to use and IQ is good enough that I'd be willing to print up to 16x20 with it. I also like it's good close up ability.