Important details from the press release are after the jump.
The F1.2 of 85mm is, by far, the brightest lens in existing full frame DSLR lenses, securing the fast shutter speed. It has ten elements in seven groups, applying one aspherical lens and two high refractive lenses. The aspherical lens minimises the aberration and unnecessary light dispersion. Two high refractive lenses effectively adjust the path of light and deliver maximum amount to the sensor for clear and vibrant image.
14mm F2.4 also takes no compromise for the image quality. It is equipped with the most advanced optical technology among Samyang Lenses. It has 18 glasses in 14 groups including four different special optics: two aspherical lenses, one hybrid aspherical lens, two extra-low dispersion lenses and one high refractive lens. This optimal performance creates impressive image quality from centre to corner of image.
Also, the design itself is the statement. Aluminum alloy metal is adopted for maximum durability. With a sleek yet unprecedented design with flowing curves, this signature line-up is a one-of-a-kind lens. The usability is maximized with considerate diameter in 93~95mm.