Summary: This is an extremely versatile lens. I love the manual focusing ring. I use it with my Panasonic GH3 and BMPCC and it works great, as do other Olympus MFT lenses. Focusing is extremely fast and quiet. The size, weight, and speed means it is always with me. If you got into the MFT format to go light and fast without sacrificing quality, get this lens. Totally worth the money. Vendor shipped it right away, no issues.
Summary: Bought this as a fast, bright night photography lens for my Panasonic MFT camera. Works well, VERY wide aperture, focuses fast, and a wide angle for night sky photos. Good lens for night cityscapes, as well.
Summary: I purchased this Olympus M. Zuiko 17mm f1.8 lens as an upgrade to my 17mm f2.8 that I had for a year for my Olympus E-M5. The build quality is outstanding from its metal body to the smoothness of the auto-manual focus ring. Overall dimensions and weight are more than the f2.8. However, its performance far exceeds the trade-off in size. The bokeh is much smoother and the resultant pictures have better color rendition.
Excerpt: This is a wonderful lens. It looks like a smaller version of my Olympus 12mm f2.0. It has a metal body and is very well built. I use this lens on my Olympus OM-D E-M10 and the autofocus is blazing fast and highly accurate. I think the image quality is excellent. The 17mm focal length is the equivalent of the classic 35mm lens, favored among many street shooters.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Rugged, Strong Construction