Sigma 20mm f/2 DG DN Contemporary Lens for Sony E-Mount
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Sigma 20mm f/2 DG DN Contemporary Lens for Sony E-Mount
New Standards of Optical Performance
For The Contemporary Line
The 20mm F2 DG DN | Contemporary lens for Sony E-Mount achieves the highest level of optical performance even at the widest aperture setting of F2 from the center of the image to the periphery. Based on the latest optical design technology, the lens construction includes three high-precision glass-molded aspherical lens elements, one SLD element, and one FLD element to suppress a range of optical aberrations. The result is clear and sharp images even in the extreme corners of the frame. By focusing on the suppression of sagittal coma flare, which is difficult to correct in post-processing, accurate reproduction of very bright points of light has been achieved. This also provides extremely detailed results across the entire image, which is especially important for night sky photography.
Exceptional I Series Build Quality
With a Compact Form-Factor
All I series lenses have an all-metal construction. The precision-cut aluminum parts not only give the barrel a sleek, stylish finish, but provide superb durability that improves the quality of the entire product. Metal materials are also used in internal structures that slide with the operation ring for added robustness. These high-precision components crafted with SIGMA’s cutting-edge metalworking technology are also used in SIGMA’s CINE LENS line-up for professional cinematographers and provide a tactile, ergonomic feel that make the lens a pleasure to use.
Dynamism In The Palm Of Your Hand
Exceptional optical performance and superb build quality give photographers the joy of creating images
– introducing the new ultra-wide SIGMA 20mm F2 DG DN | Contemporary
This all-new full-frame premium compact prime for mirrorless systems is the latest addition to SIGMA’s I series lineup, combining a bright maximum aperture of F2, an ultra-wide 20mm focal length and stunning optical performance. The lens boasts an exceptionally small form factor, weighing in at just 370g and measuring just 72.4mm in length*, which makes it a highly practical optic that is portable enough for everyday shooting. It’s ideal for landscapes, wide-angle portraits, weddings and interiors, and is particularly well-suited to astrophotography owing to its very well-controlled sagittal coma flare. It is the fourth I series lens with an F2 aperture, joining a 24mm, 35mm and 65mm, which together make a well-matched lens set for Sony E-Mount camera users.
Remarkably, the 20mm F2 DG DN | Contemporary lens for Sony E-Mount is almost identical in size and weight to the very compact SIGMA 24mm F2 I series. A sleek, all metal design, with a signature I series magnetic lens cap, a manual aperture ring and exceptional production quality means using this lens is a highly intuitive and satisfying experience, making the photo-taking process even more enjoyable. This sharp and beautifully built I series prime, the SIGMA 20mm F2 DG DN | Contemporary captures the essence of the I series, bringing a new level of user experience―the pleasure of owning and using a lens.
| Lens construction | 11 elements in 13 groups |
|---|---|
| Angle of view (35mm) | 94.5° |
| Number of diaphragm blades | 9 (Rounded diaphragm) |
| Minimum aperture | F22 |
| Minimum focusing distance | 22cm / 8.7in. |
| Maximum magnification ratio | 1:6.7 |
| Filter size | φ62mm |
| Dimensions (diameter x length) |
φ70mm × 74.4mm / φ 2.8in. x 2.9in. |
| Edition number* | C022 |
| Weight | 370g / 13.1oz. |
※ About Edition number
The three-digit code on the surface of the lens is to indicate the year the lens was first released.
(Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)
Lens Construction
Diffraction MTF
Geometrical MTF
In the Box:
- Sigma 20mm f/2 DG DN Contemporary Lens for Sony E
- Front Lens Cap
- Rear Lens Cap
- Lens Hood
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