All existing examples of the Sony E-mount 16mm F2.8 lens for its NEX system are non-production specification, the company has informed us. Tetsuya Numata, General Manager, Digital Imaging Europe told us: '[Sony] Japan noticed that all 16mm samples were actually pre-production samples and not showing the final performance of the lens. The design was modified from pre-production stage.' The statement came following discussions we'd had with the company over the image quality displayed in our own samples and others on the Internet. The company has promised us a production specification lens and we will post images with it as soon as we have it.