Hi All, I'm not much of a poster, but now I've got a question that I can't get answered. A few weeks ago I bought a second hand Samyang 14mm in e-mount. The person I bought it from is pretty thrustworthy but I think I just got a bad sample. The sharpness in the corners really dissapoint me, even stopped down to F11. Also, the right side of the frame looks softer than the left side. So I'm going to sell the lens and I'm thinking about buying the fisheye converter (057FEC) for the 28mm f/2. Now I would like to ask here: Is there anyone who has experience with the converter? I'm very curious to know if it would perform better than the Samyang 14mm. The af is a bonus and also that its a converter is convenient for carrying around. I don't mind a bit of fuzzy corners but the Samyang was just bad. If the Samyang should definitely be the sharper and better option than I could consider buying another copy after I sell mine. I just can't decide and reviews of the converter don't really give me any conclusions either. Any advise is much appreciated and I would like to know what you would rather get: The fisheye converter for the 28mm f/2 or the Samyang (rokinon/etc) 14mm in e mount.