The praise from the preceding reviews I can understand. Also I am very enthusiastic about the lens, especially the sharpness and contrast. I use the lens on a em5. Restrictive but you have to say that not only the focal length, but also the Aperture with the crop factor must be multiplied when comparisons are made with actual miniature lenses. And then it looks with the Aperture not quite as great (5.6 instead of 2.8!), As the marketing would have us believe. The price comparison will look not so great, but unfortunately I have to deduct star. Considered within the MFT system the objective is but highly recommended.
