Sigma Unveils 20mm f/2 DG DN for Sony E and Leica L Mounts
Sigma has announced the 20mm f/2 DG DN lens, its seventh and widest optic in the all-metal I Series of compact primes. This new lens is the widest in the I series released to date. Equipped with a metal, knurled, petal-type lens hood, this ultra-wide prime is compatible with 62mm threaded front filters. It is also an addition to the fast f/2 aperture group of I series lenses alongside the 24mm f/2 DG DN | C, 35mm f/2 DG DN | C, and 65mm f/2 DG DN | C. All f/2 I series lenses feature a distinctive arc-type AF/MF switch and stylized barrel design near the “Made in Japan” marking.
The fast f/2 maximum aperture and total optical performance make this a natural choice for astrophotography, along with landscapes, cityscapes, street photography, low-light interiors, and other nighttime situations. Due to its wide focal length and compact size, this 20mm lens is also an ideal choice for handheld vlogging and video streaming. And the ability to mount front filters, such as neutral density filters, for video and long-exposure landscapes on such a fast-aperture ultra-wide will be appreciated by many content creators.
The lens boasts an exceptionally small form factor, weighing in at just 370g and measuring just 72.4cm in length, which makes it a highly practical optic that is portable enough for everyday shooting. Remarkably, the 20mm f/2 DG DN | Contemporary is almost identical in size and weight to the very compact SIGMA 24mm f/2 DG DN | Contemporary. 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.
The 20mm f/2 DG DN | Contemporary achieves the highest level of optical performance even at the widest aperture setting of f/2 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, especially important for night sky photography.
The lens’ optical design, as well as its Super Multi-Layer Coating and Nano Porous Coating (NPC), ensures very minimal flare and ghosting even when shooting into bright light sources. This makes it much easier to photograph backlit subjects and still achieve punchy, high contrast results.
Additional features:
- Lens construction: 13 elements in 11 groups, with 1 FLD, 1 SLD and 3 aspherical lens elements
- Inner focus system
- Compatible with high-speed autofocus
- Stepping motor
- Compatible with Lens Aberration Correction
*Function available on supported cameras only. Available corrections may vary depending on the camera model. - Supports DMF and AF+MF
- Nano Porous Coating
- Super Multi-Layer Coating
- Aperture ring
- Focus mode switch
- Petal-type lens hood (LH656-03)
- Magnetic metal lens cap (LCF62-01M)
- Mount with dust and splash resistant structure
- Support for switching between linear and non-linear focus ring settings (for L-Mount only)
- Compatible with SIGMA USB DOCK UD-11 (sold separately / for L-Mount only)
- Designed to minimize flare and ghosting
- Every single lens undergoes SIGMA’s proprietary MTF measuring system
- 9-blade rounded diaphragm
- High-precision, durable brass bayonet mount
- “Made in Japan” craftsmanship
Here are some sample pictures:
Sigma says the lens will be available to purchase for Sony E-mount and L-mount cameras starting February 25, 2022 for a suggested retail price of $699.
More info on Sigma’s website.
