The Zeiss Distagon T* 15mm f/2.8 ZF.2 Lens for Nikon F Mount is an incredibly fast 15mm lens that delivers the historical advantages of Zeiss optics. Whether you need to capture wide horizons or small objects in larger surroundings, you can always capture extreme perspectives with unsurpassed precision. You will enjoy extremely precise manual focusing, along with a large rotational angle, incredible control of stray light at the edges and a virtually circular aperture that creates unparalleled Bokeh. It also delivers photos with contrasting edges, without color fringing. Its durable all metal construction is designed to work with Nikon cameras with an F mount. Like all Zeiss ZF.2 lenses, this lens comes equipped with AI-aperture coupling and CPU.ZF.2 LENS Zeiss ZF.2 are SLR lenses with F bayonet mount for Nikon cameras. They support all key modes on all current Nikon DSLR cameras. To do so, simply lock the aperture ring in the largest f-stop (e.g. 16) shown in orange. On camera models without an electronic interface, the aperture is manually set on the lens aperture ring. DISTAGON DESIGN Distagon is a retrofocus design that gives advanced control via an SLR viewfinder. For extreme wide angles, the back focal distance has to be much greater than the focal length. In such situations, Distagon is the ideal choice. MANUAL FOCUS Manual focusing means you have all the control at the end of your fingers. ZEISS lenses feature a specially designed ergonomic construction that is noticeable at first touch. The large rotation angle of this lens guarantees precise focusing. The mechanism moves super smoothly and without extra play, furthering the intuitive interaction along the focal plane. ASPHERICAL DESIGN Zeiss' aspherical lens design creates a more complex surface profile. This helps to greatly reduce spherical and other optical aberrations. The design further ensures consistent imaging performance throughout the entire focal range, while delivering incredible sharpness up to the periphery of the image. ALL METAL MOUNTS Zeiss lenses are engineered for decades of high level use. The high level of craftmanship are obvious in their all-metal mounts. They sport an secure gripped metal focus and aperture ring. The strong front bayonet and filter thread ensure quality performance every time you pick it up. ADVANCED APERTURE DESIGN With Zeiss lenses you can create stunning Bokeh effects, thanks to the finely tuned features of ZEISS SLR lenses. By keeping the background intentionally blurred, additional focus is created on the subject of an image. The uniquely engineered diaphragm blades of this lens, along with the virtually circular aperture, deliver stunning renditions of highlights the back and foreground.