Sigma 14mm F1.4 DG DN Art Lens L-Mount

Main Features:

The world’s first full-frame 14mm lens with an F1.4 aperture

The SIGMA 14mm F1.4 DG DN | Art is the world’s first F1.4 mirrorless lens with an angle of view this wide. The F1.4 aperture is two-thirds of a stop brighter than its predecessor the SIGMA 14mm F1.8 DG HSM | Art for DSLRs, which means it allows 58% more light onto the camera’s sensor. This makes it even better suited to photographing the night sky, as well as for using hand-held in dark environments.

Optically optimized for astrophotography

With its advanced optical design that includes 1 SLD,  3 FLD, and 4 aspherical elements, the lens has been designed with astrophotography in mind. With a particular emphasis on optical quality at infinity focus,  the lens has very well-controlled optical aberrations and sagittal coma flare, which ensures that bright points of light remain pin-sharp and round at all apertures and across the entire frame.

The lens uses in-camera optical aberration control profiles to help correct for any distortion or vignetting, whereas optical issues that are more difficult to improve digitally, such as corner softness and chromatic aberration, are eliminated by the lens’s sophisticated optical design. Using optical aberration  control selectively in this way helps to keep the size and weight of the lens down

A professional feature set with the superb build quality

The 14mm F1.4 DG DN | Art has a professional feature set that makes it easier for photographers and filmmakers to achieve the best possible results. Built into the barrel is an aperture ring, which can be set to auto for aperture control on the camera. With a very precise action, the ring can also be de-clicked if preferred, or locked in place so that it’s not accidentally knocked.

At the front of the barrel is a Lens Heater Retainer, which was a feature introduced on the SIGMA 20mm F1.4 DG DN | Art. This helps hold a heat strip in place, which is often used by Astro photographers when shooting in cold conditions to prevent condensation build-up on the front element.

The lens features a rear filter holder that allows sheet-type filters to be attached. Soft-type filters are preferred by Astro photographers as they make stars appear softer, larger, and brighter. Other types of sheet-type filters can also be used

A brand-new front lens cap has been specially designed with these types of filters in mind. Two filter slots are provided to store pre-cut sheet-type filters, allowing them to be carried with the SIGMA 14mm F1.4 DG DN Art lens at all times. Previous lenses such as the SIGMA 14mm F1.8 DG HSM | Art used a push-fit type cap. The new front cap now features a secure lock mechanism to prevent the cap from falling off unintentionally

An MFL (manual focus lock) switch can be found on the side of the lens barrel. This allows Astro photographers to find infinity and then switch the MFL switch to Lock, which completely disables the focus ring. This means that even if the ring is knocked the focus will remain at infinity

As this type of ultra-wide-aperture lens is by nature relatively heavy, attaching the camera to a tripod using the camera’s tripod thread can make the set-up front-heavy, putting the thread under stain and making the camera unstable. So included with this lens is the TS-141 Tripod Socket, which ensures a more balanced set-up closer to the centre of gravity when mounted on a tripod.

An AFL button is included on the lens barrel, which can be customized depending on the camera and system.

The 14mm F1.4 DG DN is fitted with Sigma’s new High-response Linear Actuator (HLA) motor, which delivers faster, smoother, quieter, and more accurate focusing than a stepping motor. This is only the third Sigma lens to be designed with this technology, ensuring very responsive focusing in all shooting situations.