Xeen is a range of video cinema lenses which blazes a new trail in the professional lens market the optics are a masterpiece of design and a culmination of samyangrsquos expertise in optical engineering guided by feedback from professional directors of photography they were created to deliver the quality demanded by commercial and artistic productions xeen delivers superior optics all with bright t15 aperture except 14mm t31 and 135mm t22 and outstanding optical performance for 4k