hey friends, here I present some pictures I've taken with the Olympus Zuiko nex5R and * 28mm f/3.5. The optical construction of the lens Consists of 7 elements in 7 groups, the build construction is superb, the lens barrel is metal, as is the aperture ring, que is located at the front of the lens barrel, and t I focusing ring is fully rubberized, so easy to use. maybe this lens is one of the smallest wide angle SLR lenses ever manufactured weighs only 180g. The minimum focusing distance is 30cm and the minimum aperture is f/16. The filter size is 49mm. The good thing is non-existent vignetting is onthe Nex (APS-C) from f/3.5. The results are not very surprising relativamente Considering the lens is slow, f/3.5, but the Colour reproduction was pretty accurate, however I, the lens Showed somewhat higher levels of color fringing at f/3.5, I was playing with it, and works fine , against the flare and distortion.