Sigma 16-28mm f/2.8 DG DN Contemporary Lens – Leica L Mount

Introduction

With its excellent field curvature correction, theSigma16-28mm F2.8 DG DN | Contemporaryis able toachieve exceptional edge-to-edge sharpness, which is essential for most wide-angle applications. Itboasts five FLD elements and four aspherical lens elements to ensure optimal image quality withminimal aberrations. The lens has an inner zoom mechanism that keeps overall length consistentthroughout the entire zoom range, helping it feel balanced in the hand. The inner zoom also means thelens’ center of gravity stays fairly constant, so it’s perfect for gimbal use. A front filter thread allowsfilters to be attached more easily.

The lens boasts an exceptionally compact form-factor, weighing in at just 450g and measuring just 100.6mm in length*, which makes it a highly practical optic that is portable enough for everyday shooting. It’s especially appealing for landscape, wedding and travel photographers who need to carry their kit for long periods.

Features:

• Leica L-Mount Lens/Full-Frame Format
• Aperture Range: f/2.8 to f/22
• Five FLD Elements
• Four Aspherical Elements
• Internal Focus Design
• Super Multi-Layer & Nano Porous Coatings
• Weather-Sealed Construction
• Rounded 9-blade Diaphragm
• Compatible with Sigma UD-11 USB Dock
• Tested with Sigma A1 MTF System

Uncompromising optical performance within a compact body:
Optimized with the latest optical design technology, the 16-28mm F2.8 DG DN | Contemporary is ahigh-performance optic that delivers exceptional image quality despite its compact size. The two large-diameter aspherical lens elements and five ideally arranged FLD glass elements (whose characteristicsmirror that of fluorite) keep the lens light and compact while effectively suppressing the lateral andvertical chromatic aberrations that often diminish the image quality of other ultra-wide lens designs. Thelens also utilizes the advanced digital correction capabilities of modern cameras to enable it to achievesuch impressive image quality from such a small body.

An F2.8 constant aperture gives a shallow depth-of-field for blurry out-of-focus areas, which isespecially useful when shooting close-ups. The bokeh is smooth and circular thanks to the ninerounded diaphragm blades, which means the background never distracts from the in-focus subject.

SIGMA has also taken extensive measures to counter ghosting andlens flare, which are caused byreflections inside the lens barrel. The Super Multi-Layer Coating ensures that the 16-28mm F2.8 DGDN | Contemporary delivers punchy, high contrast results even in the most difficult of backlit conditions.

Convenient form-factor allowing more freedom and usability
The new 16-28mm has a front filter thread built in, which allows neutral density and polarizing filters to be attached more easily. This is especially useful for landscape photographers and film-makers.

By using a stepping motor to control the AF actuator, the autofocus of the 16-28mm F2.8 DG DN | Contemporary is both fast and silent, making it ideal for shooting photography and video in quiet environments.

The inner zoom mechanism allows the lens to maintain the same length throughout the entire zoom range and with almost no shift to its balance point. The resulting stability will be appreciated by anyone looking to use the lens with a gimbal, or for hand-held or vlog-style video shoots.

The inner zoom mechanism also greatly contributes to the lens’ favorable physical dimensions: at a length of 100.6mm, a diameter of 77.2mm and a weight of only 450g, its compactness rivals wide-angle zooms with slower maximum F4 apertures.