SIGMA 3 YEAR WARRANTY INCLUDED The Sigma 85mm f/1.4 DG DN is an Art-series prime characterised by its advanced and updated optical design, sleek profile, and bright design. The f/1.4 maximum aperture enables working in low-light conditions and also provides increased control over depth of field for achieving shallow depth of field effects. The optical layout incorporates a series of low dispersion, aspherical, and high refractive index elements and its large diameter design achieves a notable degree of clarity and sharpness with well-controlled distortion and aberrations. Also, a Super Multi-Layer Coating enhances image quality by suppressing lens flare and ghosting for improved contrast and colour fidelity in strong lighting conditions. Balancing the optics is a refined exterior design, which features a physical aperture ring, which can be de-clicked or locked, along with a dedicated focus mode switch and AFL button for intuitive and tactile control. For autofocus, a stepping motor is used that maintains a lightweight and compact design while promoting fast and near-silent focusing performance for both stills and video applications. Additionally, the lens features an 11-blade rounded diaphragm for smooth bokeh quality and the lens housing is also weather-sealed to suit working in inclement conditions. As part of the Art line within Sigma's Global Vision series, this lens is designed to achieve truly notable optical performance and is ideally suited for creative and artistic applications. Portrait-length lens is designed for full-frame Sony E-mount mirrorless cameras (can also be used with APS-C models providing a 127.5mm equivalent focal length). Bright f/1.4 maximum aperture is particularly well-suited for working in available light conditions and provides extensive control over depth of field for isolating subject matter with selective focus. Five Special Low Dispersion (SLD) elements markedly reduce chromatic aberrations and colour fringing for improved clarity and colour accuracy. One aspherical element and four high refractive index glass elements control spherical aberrations and distortion for increased sharpness and accurate rendering. A Super Multi-Layer Coating has been applied to lens elements in order to minimise lens flare and ghosting and contribute to producing contrast-rich and colour-neutral imagery, even in backlit conditions. Integrated stepping motor realises quick and quiet autofocus, which is further complemented by an optimised AF algorithm to produce smoother focusing performance. Manual aperture ring can be de-clicked for smooth, silent aperture switching to benefit video applications. Additionally, a dedicated aperture ring lock switch can also be employed to prevent accidental shifting of the aperture setting. Built-in Autofocus-Lock (AFL) button which can be assigned additional functions widens the range of operations available on the lens. Rounded eleven-blade diaphragm contributes to a smooth and pleasing bokeh quality. Weather-resistant construction with a brass bayonet that affords improved mounting accuracy and rigidity. (Leica L lens is compatible with the optional Sigma UD-11 USB Dock for fine-tuning different lens characteristics and updating its firmware). Principal specifications Lens type Portrait-length Prime (Fixed) Max Format size Full-Frame Focal length 85mm Image stabilisation No Lens mount Sony E Aperture Maximum aperture f/1.4 Minimum aperture f/16 Aperture ring Yes Number of diaphragm blades 11, Rounded Optics Elements 15 Groups 11 Special elements / coatings Five SLD Elements / Super Multi-Layer Coating Focus Minimum focus 2.79' / 85cm Maximum magnification 0.12x Autofocus Yes Motor type Stepper Motor AF System Full time manual Yes Focus method Internal Distance scale No DoF scale No Physical Weight 625 g (1.38 lb) Diameter 82.8 mm (3.26") Length 96.1 mm (3.78") Sealing Yes Colour Black Zoom method Fixed Power zoom No Filter thread 77 mm Hood supplied Yes Hood product code LH828-02 Tripod collar No Sigma 85mm f/1.4 DG DN Art Lens 77mm Lens Cap Rear Cap LH828-02 Lens Hood Delivery Address If you wish to pay using your card then unfortunately due to the value of the products we sell we can only send orders to the billing address of your card. However, If you need to have an item delivered to an alternative address to your billing address then we can do this but you would have to select to pay via either Bank Transfer or Amazon Pay. By using Amazon Payments you can select one of your saved address on Amazon for your delivery - we are happy to help over the telephone if you have not used Amazon Payments before or if you are having any problems. We understand this can sometimes be difficult with work commitments, but we will do our best to accommodate your needs. Please note we