Today SIGMA has announced two brand new lenses for its Art line-up: the 20mm F1.4 DG DN | Art andthe  24mm F1.4 DG DN | Art. Both lenses are available for L-mount and Sony E-mount camera's.

The SIGMA 20mm F1.4 DG DN | Art  and 24mm F1.4 DG DN Art are wide-angle, ultra-wide-aperture primes that iareperfect for astrophotography. It delivers outstanding Art-line optical quality and offers a range of advanced features. As well as being very well-suited to astro, both lenses are ideal for landscapes, interiors and a range of other wide-angle applications.

Portable and light with superb build quality

Designed and manufactured at Sigma’s sole factory in Aizu in Japan, both the 20mm F1.4 DG DN and 24mm F1.4 DG DN meets the exceptionally high production standards that users have come to expect from Sigma’s Global Vision lenses.

The robust body is built from a combination of aluminum and Thermally Stable Composite (TSC), giving it a sleek finish, and the focus ring has a smooth, well damped action. A petal-shaped lens hood is included, and equipped with a lock mechanism to keep it securely fastened to the lens. A rubber grip makes it easier to attach and remove the hood.

Built with a dust and splash-resistant structure, a water- and oil-repellent coating on the front element, and a rubber seal around the mount, the 20mm and 24mm F1.4 DG DN are safe to use during longer outdoor shoots.*1

Both lenses are built with exceptional attention to detail in its functionality, construction and design ergonomics, helping users achieve the best possible results in any shooting situation.

*1 While the lens is safe to use in light rain, please note that it is not fully weather sealed and therefore not waterproof.

Advanced features

A manual aperture ring is built in, which is de-clickable for a smooth transition between aperture settings – useful for changing exposure seamlessly when shooting video. The aperture ring also has a lock switch. A new Manual Focus Lock (MFL) switch completely deactivates the focus ring, ensuring the focus position won’t change if it is accidentally knocked. So for night-sky photographers, the days of using tape the hold the focus ring in position are over.

An AFL button is built into the lens, which can be customized to a range of different functions*2, and on the L-Mount version of the lens, it is possible to switch between linear and non-linear focus ring movement (USB Dock required). Film-makers will appreciate the fast yet near-silent autofocus functionality, which is driven by a stepping motor.

*2 Only on compatible cameras. Available functions may vary depending on the camera used.

Key Specifications