#microcontrast

Image Quality: 9/10

The first thing I noticed while shooting this lens is that it has absolutely superb contrast. Textures, edges and out-of-focus transition have a real "3D look" and seem to "pop" (for lack of non-clichéd phrases). Wide open it is very sharp, and once stopped down to around f2.8 or f4 becomes excellent. Bokeh is super creamy and doesnt really exhibit any strange rendering; suprising for a 15mm f1.7 lens. The only real complaint I can find in the image quality department is the heavy green and purple fringing at larger apertures.

Build/Feel: 10/10 The entire lens body feels like its made out of a high quality metal and has a good solid weight to it given its size. The aperture and focus rings, although entirely electronic, feel like you're using a premium manual lens. Lastly, the included lens hood continues with the premium metal build and reminds of a Zeiss of Voigtlander rangefinder hood. The hoods bayonet mount feels very solid and reassuring. 

Usability: 9.5/10 Autofocus on this lens feels about as fast of most Olympus primes, which is excellent. In addition to being quick it rarely hunts or misses focus, even in low light. On the side there is a switch to go to manual focus. As mentioned above, the focus ring has a superb feel to it and more importantly is accurate enough to make achieving manual focus a breeze. The aperture ring, also as mentioned above, feels great but it unfortunately is not designed to function on Olympus bodies and thus I cannot test out its functionality. Lastly, this lens is compact and lightweight enough to leave on the camera and carry around in a coat pocket or small bag.