Summary: I have an Olympus Pen E-P5 and bought the kit that includes a 17mm f/1.8 prime lens, which is a great lens to come in a kit. However, it can be too wide for certain shots, like when I want to take photos of my son at the playground. At first, I wasn't too fond of the idea of prime lenses and would prefer zoom lenses, but after seeing the quality of the 17mm f/1.8 prime, my mind was changed.
Highly recommended. Great glass for low cost and low bulk
17 January 2014
Summary: Highly recommended. This lens is where micro 4/3rds truly shines. Although a fast "90mm" lens withrespect to 35mm FOV, it is tiny with creamy bokeh! Sharp at large aperture, it is tack sharp at F/4. It's a little soft at the edges, especially when wide open, this is actually a feature for portraits and selective focus. Nicely built with emphasis on small size. Compare this little guy to a Canon or Nikon beast and you'll also be in love.
Summary: A very sharp fast lense with wonderful bokeh bought for the Olympus EM-1. Much cheaper than many other lenses of this optical quality and so great value. I agree with Ming Thein who says, But never mind all that, how does it perform? In a word, brilliantly. It’s one of my favourite lenses for Micro Four Thirds. If I had to describe it in a word, it would be ‘transparent’.