Sigma 20mm f2 DG DN Contemporary Lens - Sony E

SigmaSKU: 85126490652

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Sale price£649.00

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Product Description

Sigma 20mm f2 DG DN Contemporary Lens - Sony E

  • E-Mount Lens/Full-Frame Format
  • Aperture Range: f2 to f/22
  • One SLD and One FLD Element
  • Three Aspherical Elements
  • Minimum Focus Distance: 8.7"
  • Rounded 9-Blade Diaphragm
  • All-Metal Body and Internal Parts
  • Durable, Weather-Sealed Construction

Close-Focusing Wide-Angle Prime
A sleek, compact, wide-angle prime, the Sony E-mount 20mm f/2 DG DN Contemporary Lens from Sigma provides excellent edge-to-edge sharpness in a stylish all-metal design. An ideal lens for landscapes, cityscapes, handheld vlogging, and video streaming, the lens provides a modestly bright f/2 maximum aperture for low-light performance and shallow depth of field control. Additionally, its fast maximum aperture makes it a natural choice for night sky and astrophotography. Regarding handling and focus, this lens features a stepping motor for quick, accurate, and quiet AF performance that suits both photo and video applications.


Refined Optics
As part of the Contemporary line within Sigma's Global Vision series, this lens is designed to achieve a balance between convenience and performance and meshes a compact, lightweight build and versatile handling with notable optical attributes.
The lens is constructed with one SLD glass element and one FLD glass element to correct chromatic aberration. It incorporates three high-precision aspherical elements, which reduces the total size and weight of the lens.



Physical Design
I-series lens emphasises a sleek and stylish physical design built to the same operational standards of Sigma's Cine lenses, including a mechanical aperture ring, knurled metal components, and various switches and tactile controls for intuitive operation.

Wide-angle 20mm lens designed for full-frame Sony E-mount mirrorless cameras, however, can also be used with APS-C models where it provides a 30mm equivalent focal length.

Bright f/2 maximum aperture strikes and ideal balance between speed and size and manages to maintain a compact physical profile while also offering low-light performance and depth of field control.



Rounded nine-blade diaphragm contributes to a smooth and pleasing bokeh quality.

Fast Closeup Focusing
Integrated stepping motor realizes smooth and quiet autofocus. Full-time manual focus control can also be selected via an arc-type auto/manual focus switch. A newly designed linear/non-linear manual focus function is also available.
Minimum focusing distance of 8.7" for unique close-up shooting capabilities.



All-Purpose Functionality
All-metal body and high-precision metal parts with a dust- and moisture-resistant lens mount for increased protection from the elements.

Metal lens hood helps to reduce lens flare when working in strong lighting conditions and also offers some protection to the front element of the lens.

Compatible with optional CH-11 Magnetic Cap Holder, which features a mini-carabiner for clipping to a bag, jacket, or belt loop.

 
Аnglе Оf Vіеw 94.5
Ареrturе Вlаdеѕ 11
Еnlаrgеmеnt Rаtіо 1:6.1
Fіltеr Тhrеаd [mm] 82
Fосаl Lеngth ~ Теlе [mm] 20
Fосаl Lеngth ~ Wіdе [mm] 20
Нооd Моdеl LН878-04
Іnсludеd Ассеѕѕоrіеѕ

Frоnt Сар LСF-82 ІІІ, Lеnѕ Нооd LН878-04, Rеаr Сар LСR ІІ

Lеnѕ Еlеmеntѕ 17
Lеnѕ Grоuрѕ 15
Lеnѕ Моunts Canon EF
Nikon F
Sony FE
Lеnѕ Туре

Wіdе-аnglе рrіmе

Мах Ареrturе ~ Теlе 1.4
Мах Ареrturе ~ Wіdе 1.4
Міnіmum Ареrturе 16
Міnіmum Fосuѕ Dіѕtаnсе [m] 0.23
Ѕіzе

87.8mm х 111.2mm

Wеіght [g] 635

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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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