Sigma 28-70mm f2.8 DG DN Contemporary Lens - Sony E

SigmaSKU: 85126592653

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Product Description

Sigma 28-70mm f2.8 DG DN Contemporary Lens - Sony E

Design based on SIGMA’s Art line, with the same uncompromising optical performance



The optical design of the SIGMA 28-70mm F2.8 DG DN Contemporary is based on the 24-70mm F2.8 DG DN Art, which is renowned for its outstanding optical performance throughout its zoom range. True to the Contemporary line’s core concept, the 28-70mm F2.8 DG DN Contemporary was developed to offer the right balance of performance and portability, and as such, this large-aperture standard zoom delivers outstanding image quality that rivals Art line lenses in a body light enough for day-to-day use.

Building on state-of-the-art technology, the 28-70mm F2.8 DG DN Contemporary has an advanced optical design that includes three aspherical, two FLD, and two SLD elements. Despite using fewer elements in total than the 24-70mm F2.8 DG DN Art, the design results in a thorough correction of axial chromatic aberration and sagittal coma aberration, which cannot be corrected in-camera, allowing users to create images that are uniformly sharp from the centre to the edges of the frame.

Along with its anti-ghosting design, the use of Super Multi-Layer Coating and Nano Porous Coating means well-controlled flare for high-contrast results in backlit conditions. It also features a water and oil-repellent coating on the front side of the lens.

In short, the SIGMA 28-70mm F2.8 DG DN Contemporary combines all of the key optical features required of a large-aperture standard zoom lens, which are essential for photographing a wide variety of subjects in a range of shooting conditions.

With the addition of the new 28-70mm F2.8 DG DN Contemporary, SIGMA now provides two optimal solutions of standard F2.8 zoom lens for mirrorless cameras ― the new 28-70mm F2.8 DG DN Contemporary achieves remarkable portability and offers the same optical performance, as the existing 24-70mm F2.8 DG DN Art which is for pro-use with the highest levels of performance throughout its focal range.

 
Аnglе Оf Vіеw 75.4 - 34.3
Ареrturе Вlаdеѕ 9
Fіltеr Тhrеаd [mm] 67
Fосаl Lеngth ~ Теlе [mm] 70
Fосаl Lеngth ~ Wіdе [mm] 28
Нооd Моdеl LН706-01
Lеnѕ Еlеmеntѕ 16
Lеnѕ Grоuрѕ 12
Lеnѕ Моunt Ѕоnу FЕ
Lеnѕ Туре Ѕtаndаrd Zооm
Мах Ареrturе ~ Теlе 2.8
Мах Ареrturе ~ Wіdе 2.8
Махіmum Fоrmаt Ѕіzе Full Frаmе
Міnіmum Ареrturе 22
Міnіmum Fосuѕ Dіѕtаnсе [m] 0.19
Ѕіzе

72.2mm х 101.5mm

Wеіght [g] 470

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Understanding: Aperture

Aperture is the opening in a camera lens that controls how much light enters the camera. It's measured in f-stops like f/2.8 or f/8. Lower f-stop numbers mean wider openings, letting in more light and creating a shallow depth of field (blurry background). Higher f-stop numbers mean smaller openings, letting in less light and creating a larger depth of field (more of the scene in focus). Aperture also affects the quality of out-of-focus areas in the image (bokeh).

Understanding: Lens Types

Different lenses have different purposes to achieve different styles of images, some popular ones include:
Prime Lens: Fixed focal length, sharp images, great for portraits and dark settings.
Zoom Lens: Variable focal length, versatile for different shots and everyday use..
Wide-Angle Lens: Captures wide scenes like landscapes.
Telephoto Lens: Magnifies distant subjects, ideal for sports & wildlife.
Macro Lens: Perfect for close-up photography of small subjects.
Fisheye Lens: Ultra-wide perspective, creates unique images.

Understanding: Lens Mounts

Different camera brands use different lens mounts, which are like connectors that attach lenses to camera bodies. Each mount is specific to a particular brand and camera series. For example, Canon uses the EF and RF mounts, Nikon uses the F mount, Sony uses the E mount for its mirrorless cameras. These mounts dictate which lenses are compatible with which cameras. Some brands offer adapters to use lenses from other systems, but it's essential to ensure compatibility for proper functionality and autofocus performance.

Understanding: Manual and Autofocus

Manual focus and autofocus are two ways to adjust the sharpness of a camera lens. With manual focus, you turn a ring on the lens to bring the subject into focus yourself, giving you full control over what appears sharp in the image. Autofocus, on the other hand, relies on the camera's built-in technology to automatically adjust the focus for you, usually by detecting contrast or phase differences in the scene. Autofocus can be convenient, especially for fast-moving subjects or when you need to capture a quick shot, whereas manual focus allows for precise adjustments and creative control over the final image.

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