I think one would ever open a RAW image in the camera is logically not interfered with electronic correction, it is, however, quickly realized that the lens much image quality to the edge lost (distortion, blur, color losses). I have tested two different lenses of this type, it was similar in both lenses.
Overall, I forgive 3 stars because the lens itself though is apparently not high quality, but much is compensated by the camera electronics, and it just fits size technically perfect for NEX series. In addition, it is used for 100-150 to acquire, and thus has a reasonable price-performance ratio.