Panasonic Leica 15mm f1.7
The Leica Summilux 15mm f1.7 is a semi-wide lens designed for the Micro Four Thirds system. Mounted on a Panasonic or Olympus body, it delivers equivalent coverage of 30mm, making it a mild wide-angle roughly between the traditional 28 and 35mm focal lengths.
Sharp, high contrast, well-corrected images; Better than 17mm f1.8, Attractive out-of-focus rendering / bokeh, Good build quality with matching metal lens hood supplied, Manual aperture ring for bodies that support it, Barrel doesn't protrude below base of Lumix GM1
More expensive than primes of a similar focal length in range; Manual focusing ring was not always as smooth as I expected; No weather-sealing; Aperture ring redundant for Olympus body owners