An especially sleek portrait-length prime, the 56mm f/1.4 DC DN is part of Sigma‘s Contemporary series of lenses, and is designed for use with APS-C-format Sony E-mount mirrorless cameras. The lens is characterized by its bright f/1.4 maximum aperture, which suits working in difficult lighting conditions and also offers improved control over depth of field for isolating subjects and working with selective focus techniques. The optical design utilizes two aspherical elements and one SLD element, which help to reduce both spherical and chromatic aberrations for greater sharpness and clarity. A Super Multi-Layer Coating has also been applied to suppress flare and ghosting in order to achieve more contrast and color accuracy when working in strong lighting conditions. Complementing the optics is a stepping AF motor, which suits both photo and video applications due to its quick, precise, and near-silent performance.
Sigma 56mm F/1.4 DC DN Contemporary Specifications
| Focal Length |
56mm (35mm Equivalent Focal Length: 84mm) |
| Maximum Aperture |
f/1.4 |
| Minimum Aperture |
f/16 |
| Lens Mount |
Sony E |
| Format Compatibility |
APS-C |
| Angle of View |
28.5° |
| Minimum Focus Distance |
1.64′ / 50 cm |
| Maximum Magnification |
0.14x |
| Optical Design |
10 Elements in 6 Groups |
| Diaphragm Blades |
9, Rounded |
| Focus Type |
Autofocus |
| Image Stabilization |
None |
| Filter Size |
55 mm (Front) |
| Dimensions (ø x L) |
2.62 x 2.34″ / 66.5 x 59.5 mm |
| Weight |
9.88 oz / 280 g |
Packaging Info
| Package Weight |
1.025 lb |
| Box Dimensions (LxWxH) |
4.2 x 4.15 x 3.75″ |
Brand
SONY
Sony began in the wake of World War II. In 1946,
Masaru Ibuka started an electronics shop in Shirokiya,
[23] a department store building in the
Nihonbashi area of
Tokyo. The company started with a capital of ¥190,000
[24] and a total of eight employees.
[25] On 7 May 1946, Ibuka was joined by
Akio Morita to establish a company called Tokyo Tsushin Kogyo (
東京通信工業,
Tōkyō Tsūshin Kōgyō) (Tokyo Telecommunications Engineering Corporation).
[26] The company built Japan's first
tape recorder, called the Type-G.
[26][27] In 1958, the company changed its name to "Sony".
[28] 
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